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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.

    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

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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

                      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.

                        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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