Question

Решите уравнение (х – 5)2 – 3(х – 5) – 4 = 0

Answer 1

2х - 10 - 3х + 15 - 4 = 0
× = 1

Answer 2

$2x-10-3x+15-4=0 \\ -10+15-4=3x-2x \\ x=1$