分解因式:(1)-x4+116;(2)-8a2b+2a3+8ab2-数学

题目简介

分解因式:(1)-x4+116;(2)-8a2b+2a3+8ab2-数学

题目详情

分解因式:
(1)-x4+
1
16

(2)-8a2b+2a3+8ab2
题型:解答题难度:中档来源:不详

答案

(1)-x4+class="stub"1
16

=-(x4-class="stub"1
16
),
=-(x2+class="stub"1
4
)(x2-class="stub"1
4
),
=-(x2+class="stub"1
4
)(x+class="stub"1
2
)(x-class="stub"1
2
);

(2)-8a2b+2a3+8ab2,
=2a(a2-4ab+4b2),
=2a(a-2b)2.

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