25(x-y)的平方-60(x-y)+36
问题描述:
25(x-y)的平方-60(x-y)+36
答
=[5(x-y)-6]²
=(5x-5y-6)²
25(x-y)的平方-60(x-y)+36
=[5(x-y)-6]²
=(5x-5y-6)²