Question

ПОМОГИТЕ РЕШИТЬ УРАВНЕНИЕ!!!
X^2-10(X-4)-4X+9=0

Answer 1

$x {}^{2} - 10(x - 4) - 4x + 9 = 0 \ x {}^{2} - 10x + 40 - 4x + 9 = 0 \ x {}^{2} - 14x + 49 = 0 \ (x - 7) {}^{2} = 0 \ x - 7 = 0 \ x = 7$

Answer 2

удачи тебе ..........