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Solve for X

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  • D Dalek Dave

    Time yourself. I reckon under 30 seconds for most people here: Solve for x: (x+1)(x+2)(x+6) = x^3+9x^2+4(7x-1)

    --------------------------------- Obscurum per obscurius. Ad astra per alas porci. Quidquid latine dictum sit, altum videtur.

    N Offline
    N Offline
    Nagy Vilmos
    wrote on last edited by
    #2

    x=4

    speramus in juniperus

    1 Reply Last reply
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    • D Dalek Dave

      Time yourself. I reckon under 30 seconds for most people here: Solve for x: (x+1)(x+2)(x+6) = x^3+9x^2+4(7x-1)

      --------------------------------- Obscurum per obscurius. Ad astra per alas porci. Quidquid latine dictum sit, altum videtur.

      Z Offline
      Z Offline
      ZurdoDev
      wrote on last edited by
      #3

      x=42

      There are only 10 types of people in the world, those who understand binary and those who don't.

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      • D Dalek Dave

        Time yourself. I reckon under 30 seconds for most people here: Solve for x: (x+1)(x+2)(x+6) = x^3+9x^2+4(7x-1)

        --------------------------------- Obscurum per obscurius. Ad astra per alas porci. Quidquid latine dictum sit, altum videtur.

        A Offline
        A Offline
        Argonia
        wrote on last edited by
        #4

        x = beer

        Microsoft ... the only place where VARIANT_TRUE != true

        C 1 Reply Last reply
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        • D Dalek Dave

          Time yourself. I reckon under 30 seconds for most people here: Solve for x: (x+1)(x+2)(x+6) = x^3+9x^2+4(7x-1)

          --------------------------------- Obscurum per obscurius. Ad astra per alas porci. Quidquid latine dictum sit, altum videtur.

          L Offline
          L Offline
          Lost User
          wrote on last edited by
          #5

          (x+1)(x+2)(x+6) = x^3+9x^2+20x+12 = x^3+9x^2+4(7x-1) 20x+12=4(7x-1) 5x+3=7x-1 4=2x x = 2

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          • D Dalek Dave

            Time yourself. I reckon under 30 seconds for most people here: Solve for x: (x+1)(x+2)(x+6) = x^3+9x^2+4(7x-1)

            --------------------------------- Obscurum per obscurius. Ad astra per alas porci. Quidquid latine dictum sit, altum videtur.

            R Offline
            R Offline
            Roger Wright
            wrote on last edited by
            #6

            x=2 (3)(4)(8) = 8 + 36 + 52 96 = 96

            Will Rogers never met me.

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            • L Lost User

              (x+1)(x+2)(x+6) = x^3+9x^2+20x+12 = x^3+9x^2+4(7x-1) 20x+12=4(7x-1) 5x+3=7x-1 4=2x x = 2

              R Offline
              R Offline
              Rob Philpott
              wrote on last edited by
              #7

              Congratulations! I'm sure you get an A in GSCE maths for that, or possibly even an A at A-level these days. Not that they've dumbed down or anything...

              Regards, Rob Philpott.

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              • L Lost User

                (x+1)(x+2)(x+6) = x^3+9x^2+20x+12 = x^3+9x^2+4(7x-1) 20x+12=4(7x-1) 5x+3=7x-1 4=2x x = 2

                N Offline
                N Offline
                Nagy Vilmos
                wrote on last edited by
                #8

                I lost an x somewhere doing it in my befuddled brain.

                speramus in juniperus

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                • D Dalek Dave

                  Time yourself. I reckon under 30 seconds for most people here: Solve for x: (x+1)(x+2)(x+6) = x^3+9x^2+4(7x-1)

                  --------------------------------- Obscurum per obscurius. Ad astra per alas porci. Quidquid latine dictum sit, altum videtur.

                  D Offline
                  D Offline
                  David Goebet
                  wrote on last edited by
                  #9

                  (x+1)(x+2)(x+6) = x^3+9x^2+4(7x-1) x³ + 9x² + 20x + 12 = x³ + 9x² + 28x - 4 |-x³ 9x² + 20x + 12 = 9x² + 28x -4 |-9x² 20x + 12 = 28x -4 |-20x |+4 16 = 8x x = 2 if not i would say 42 too :-\

                  "WAKE UP, NEO." "THE MATRIX HAS YOU..." "FOLLOW THE WHITE RABBIT".

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                  • D Dalek Dave

                    Time yourself. I reckon under 30 seconds for most people here: Solve for x: (x+1)(x+2)(x+6) = x^3+9x^2+4(7x-1)

                    --------------------------------- Obscurum per obscurius. Ad astra per alas porci. Quidquid latine dictum sit, altum videtur.

                    L Offline
                    L Offline
                    Lost User
                    wrote on last edited by
                    #10

                    X = 2

                    My Name in English[^] Translation done By OriginalGriff

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                    • A Argonia

                      x = beer

                      Microsoft ... the only place where VARIANT_TRUE != true

                      C Offline
                      C Offline
                      Corporal Agarn
                      wrote on last edited by
                      #11

                      You are only half right: x = beer + bacon

                      1 Reply Last reply
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                      • D Dalek Dave

                        Time yourself. I reckon under 30 seconds for most people here: Solve for x: (x+1)(x+2)(x+6) = x^3+9x^2+4(7x-1)

                        --------------------------------- Obscurum per obscurius. Ad astra per alas porci. Quidquid latine dictum sit, altum videtur.

                        R Offline
                        R Offline
                        R Giskard Reventlov
                        wrote on last edited by
                        #12

                        What's the point?

                        "If you think it's expensive to hire a professional to do the job, wait until you hire an amateur." Red Adair. Those who seek perfection will only find imperfection nils illegitimus carborundum me, me, me me, in pictures

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                        • D Dalek Dave

                          Time yourself. I reckon under 30 seconds for most people here: Solve for x: (x+1)(x+2)(x+6) = x^3+9x^2+4(7x-1)

                          --------------------------------- Obscurum per obscurius. Ad astra per alas porci. Quidquid latine dictum sit, altum videtur.

                          J Offline
                          J Offline
                          Jorgen Andersson
                          wrote on last edited by
                          #13

                          About eight seconds: http://www.wolframalpha.com/input/?i=%28x%2B1%29%28x%2B2%29%28x%2B6%29+%3D+x%5E3%2B9x%5E2%2B4%287x-1%29[^]

                          Politicians are always realistically manoeuvering for the next election. They are obsolete as fundamental problem-solvers. Buckminster Fuller

                          L 1 Reply Last reply
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                          • D Dalek Dave

                            Time yourself. I reckon under 30 seconds for most people here: Solve for x: (x+1)(x+2)(x+6) = x^3+9x^2+4(7x-1)

                            --------------------------------- Obscurum per obscurius. Ad astra per alas porci. Quidquid latine dictum sit, altum videtur.

                            L Offline
                            L Offline
                            ledtech3
                            wrote on last edited by
                            #14

                            Ok now my head does hurt. What kind of math is this ?

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                            • J Jorgen Andersson

                              About eight seconds: http://www.wolframalpha.com/input/?i=%28x%2B1%29%28x%2B2%29%28x%2B6%29+%3D+x%5E3%2B9x%5E2%2B4%287x-1%29[^]

                              Politicians are always realistically manoeuvering for the next election. They are obsolete as fundamental problem-solvers. Buckminster Fuller

                              L Offline
                              L Offline
                              ledtech3
                              wrote on last edited by
                              #15

                              I like this answer :) I still don't understand how they got it though

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