Решите
x2+10-5x+50

x2-5x+60

(x-5)×(x+10)

1) x * 2 + 10 - 5x + 50 = 2x + 10 - 5x + 50 = -3x + 60

2) x * 2 - 5x + 60 = 2x - 5x + 60 = -3x + 60

3) (x-5)*(x+10) = x² + 10x - 5x - 50 = x² + 5x - 50