Question

Разложите на множители :
1. b (5-b) + 2(5-b)
2. 8 (y + 5) - (y + 5)²

Answer 1

1) b(5-b) + 2(5-b) = (5-b)(b+2)
2) 8(y+5) - (y+5)² = (y+5)(8-(y+5)) = (y+5)(3-y)