因式分解:10a*(x-y)的2次方-5b(y-x)
问题描述:
因式分解:10a*(x-y)的2次方-5b(y-x)
答
10a*(x-y)的2次方-5b(y-x)
=10a(x-y)²+5b(x-y)
=5(x-y)[2a(x-y)+b]
=5(x-y)(2ax-2ay+b)