分解因式.5a平方b(x-y)的三次方-30ab平方(y-x)平方
问题描述:
分解因式.5a平方b(x-y)的三次方-30ab平方(y-x)平方
答
5ab(y-x)^2*[a(x-y)-6b]
答
5a²b(x-y)³-30ab²(y-x)²
=5a²b(x-y)³-30ab²(x-y)²
=5ab(x-y)²[a(x-y)-6b]
=5ab(a-y)²(ax-ay-6b)