Question

1/2x-2x²

Solve for x

Answer 1

1/2x -2x² =0
1/2x = 2x²
1= 2x * 2x²
1 = 4x³
x³ = 1/4
x = 0.62991/2 x - 2x²= 0
2x² - 1/2 x= 0
dividing by 2
x² - 1/4 x = 0
Completing square method
x² - 1/4 x + (1/8)²= 0+(1/8)²
x² - 1/4 x + 1/64= 1/64
(x- 1/8)² = 1/64
x- 1/8= + or - 1/8

When x- 1/8 = +1/8
x = 1/4
When x- 1/8= -1/8
x = 0