Question

(x-1)(2x-2)<(2x-1)(x+2)
полное решение скиньте пж​

Answer 1

x-1)(2x-2)<(2x-1)(x+2)

$(x - 1) \times 2(x - 1) < 2x {}^{2} + 4x - x - 2$

$(x - 1) {}^{2} \times 2 < 2x {}^{2} + 4x - x - 2$

$2(x - 1) { {}^{2} <}^{} 2x {}^{2} + 4 x - x - 2$

$2(x {}^{2} - 2x + 1) < 2x {}^{2} + 4x - x - 2$

$2x {}^{2} - 4x + 2 < 2x {}^{2} + 4x - x - 2$

$- 4 x + 2 < 4x - x - 2$

$- 4x + 2 < 3x - 2$

$- 4x - 3x < - 2 - 2$

Х> 4/7