(3a-4b)(5a-6b)+(7a-8b)(5a-6b)分解因式得
问题描述:
(3a-4b)(5a-6b)+(7a-8b)(5a-6b)分解因式得
答
(3a-4b)(5a-6b)+(7a-8b)(5a-6b)
=(5a-6b)(3a-4b+7a-8b)
=(5a-6b)(10a-12b)
=2(5a-6b)^2