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(1)计算:38+(−1)3−2×(−2)22−(3−2)0(2)分解因式:(2p-4)(p+2)-10.

题目详情
(1)计算:
38
+(−1)3−2×
(−2)2
2
(
3
−2)0
(2)分解因式:(2p-4)(p+2)-10.
▼优质解答
答案和解析
(1)
38
+(−1)3−2×
(−2)2
2
−(
3
−2)0,
=2-1-2-1,
=-2;

(2)(2p-4)(p+2)-10,
=2p2+4p-4p-8-10,
=2p2-18,
=2(p2-9),
=2(p+3)(p-3).