问题
解答题
将下列各式分解因式:
(1)m3-8m2+16m;
(2)(x+2)(x+3)+x2-4.
答案
(1)m3-8m2+16m,
=m(m2-8m+16),
=m(m-4)2;
(2)(x+2)(x+3)+x2-4,
=(x+2)(x+3)+(x-2)(x+2),
=(x+2)(2x+1).
将下列各式分解因式:
(1)m3-8m2+16m;
(2)(x+2)(x+3)+x2-4.
(1)m3-8m2+16m,
=m(m2-8m+16),
=m(m-4)2;
(2)(x+2)(x+3)+x2-4,
=(x+2)(x+3)+(x-2)(x+2),
=(x+2)(2x+1).