Question

$4x - 4 - {x {?}^{2} \geqslant}3x - x { }^{2} - x$

Answer 1

4x-4-x^2 >= 3x-x^2 -x
4x-4-x^2 >= 2x-x^2
2x-4 >= 0
2x >= 4
x >= 2

Answer 2

Vamos lá

Calculo :

4X - 4 - X² ≥ 3X - X² - X

4X - 4 ≥ 3X - X

4X - 4 ≥ 2X

4X - 2X ≥ 4

2X ≥ 4

X ≥ 4 / 2

X≥ 2