Question

решите уравнение (х-3)(5+2х)=2 (х-1)^2

Answer 1

(x-3)(5+2x) = 2(x-1)²
5x+2x²-15-6x = 2(x²-2x+1)
5x+2x²-15-6x-2x²+4x-2 = 0
3x-17 = 0
3x = 17
x = 17/3