问题
解答题
将下列各式因式分
(1)m3-8m2+16m
(2)(x2+y2)2-4x2y2
答案
(1)m3-8m2+16m,
=m(m2-8m+16),
=m(m-4)2;
(2)(x2+y2)2-4x2y2,
=(x2+y2+2xy)(x2+y2-2xy),
=(x+y)2(x-y)2.
将下列各式因式分
(1)m3-8m2+16m
(2)(x2+y2)2-4x2y2
(1)m3-8m2+16m,
=m(m2-8m+16),
=m(m-4)2;
(2)(x2+y2)2-4x2y2,
=(x2+y2+2xy)(x2+y2-2xy),
=(x+y)2(x-y)2.