x的平方(x-y)-3xy(y-x)如何计算?(分解因式)
问题描述:
x的平方(x-y)-3xy(y-x)如何计算?(分解因式)
答
x的平方(x-y)-3xy(y-x)
=x的平方(x-y)+3xy(x-y)
=(x的平方+3xy)(x-y)
=x(x+3y)(x-y)
答
=x²(x-y)+3xy(x-y)
=x(x-y)(x+3y)
答
x的平方(x-y)-3xy(y-x)
=x^2(x-y)+3xy(x-y)
=(x-y)(x^2+3xy)
=x(x-y)(x+3y)