Question

Solve for x x÷4+2 root x +15=x

Answer 1

Given x/4 + 2 root x + 15 = x

           x + 8 root x + 60 = 4x

                8 root x = 3x - 60

On squaring both sides, we get

(8 root x)^2 = (3x - 60)^2

64x = 9x^2 - 360x + 3600

64x - 9x^2 + 360x - 3600 = 0

-9x^2 + 424x - 3600 = 0

x = 100/9 (or) x = 36.

x =100/9 doesn't satisfy the equation.

The answer will be x = 36.


Hope this helps! :)