问题
解答题
计算:
(1)(-2a3bc)2•(-ab2)3
(2)(2x-1)2(2x+1)2.
答案
(1)(-2a3bc)2•(-ab2)3,
=4a6b2c2•(-a3b6),
=-4a9b8c2;
(2)(2x-1)2(2x+1)2,
=[(2x+1)(2x-1)]2,
=(4x2-1)2,
=16x4-8x2+1.
计算:
(1)(-2a3bc)2•(-ab2)3
(2)(2x-1)2(2x+1)2.
(1)(-2a3bc)2•(-ab2)3,
=4a6b2c2•(-a3b6),
=-4a9b8c2;
(2)(2x-1)2(2x+1)2,
=[(2x+1)(2x-1)]2,
=(4x2-1)2,
=16x4-8x2+1.