Question

solve for x. options 3, -4, 5, 0

Answer 1

Given (x+6)(x-6) - (x-5)^2 = 40 - 17(x-2)

We know that (a+b)(a-b) = a^2-b^2.

        (x^2 - 36) - (x^2 +25 - 10x) = 40 - 17x + 34

        x^2 - 36 - x^2 - 25 + 10x = 40 - 17x + 34

        10x - 61 = 74 - 17x

        10x = -17x + 135

         27x = 135

          x = 135/27

          x = 5.


Hope this helps!