Question

Разложите на множители :
1)3ab+7ac
2)5a^3b-2a^2b^2
3)6b^3-3b

Answer 1

1)3ab+7ac=a(3b+7c)
2)5a^3b-2a^2b^2=ab(5a^2-2ab)
3)6b^3-3b=3b(2b^2-1)

Answer 2

$1)3ab+7ac=a(3b+7c) \ 2)5a^{3} b-2a ^{2} b ^{2} =a^{2} b(5 a-2b) \ 3)6b ^{3} -3b=3b(2b^{2} -1)$