
计算或化简:(1)(?12)?2+(?2)3×(?2013)0; (2)(a+3)2-(a-2)(a+2
计算或化简:(1)(?12)?2+(?2)3×(?2013)0;(2)(a+3)2-(a-2)(a+2)...
计算或化简:(1)(?12)?2+(?2)3×(?2013)0; (2)(a+3)2-(a-2)(a+2)
展开
1个回答
展开全部
(1)(?
)?2+(-2)3×(-2013)0
=4+(-8)×1
=4-8
=-4;
(2)(a+3)2-(a-2)(a+2)
=a2+6a+9-(a2-4)
=a2+6a+9-a2+4
=6a+13.
1 |
2 |
=4+(-8)×1
=4-8
=-4;
(2)(a+3)2-(a-2)(a+2)
=a2+6a+9-(a2-4)
=a2+6a+9-a2+4
=6a+13.
推荐律师服务:
若未解决您的问题,请您详细描述您的问题,通过百度律临进行免费专业咨询