问题
计算题
计算:
(1)﹣(x3)2·(x2)3;
(2)(x+2)2﹣(x﹣1)(x+1).
答案
解:(1)﹣(x3)2·(x2)3
=﹣x6·x6
=﹣x12;
(2)(x+2)2﹣(x﹣1)(x+1)
=x2+2x+4﹣x2+1
=4x+5.
计算:
(1)﹣(x3)2·(x2)3;
(2)(x+2)2﹣(x﹣1)(x+1).
解:(1)﹣(x3)2·(x2)3
=﹣x6·x6
=﹣x12;
(2)(x+2)2﹣(x﹣1)(x+1)
=x2+2x+4﹣x2+1
=4x+5.