Question

решите уравнение (x-2)(-3x-3)=0

Answer 1

(x-2)(-3x-3)=0
-3x^2 - 3x + 6x + 6 = 0
-3x^2 + 3x + 6 = 0
D = 9 + 72 = 81
X1 = 3+9/-6 = -2
Х2 = 3-9/-6 = 1