Question

3х в квадрате +5х=2-2х-хв квадрате

Answer 1

$3x^{2} +5x = 2-2x - x^{2} \\4x^{2}+7x - 2 = 0\\D = 49 + 32 = 81\\x_{1} = \frac{-7+9}{8} = \frac{1}{4} \\\\x_{2} = \frac{-7-9}{8} = -2$