问题
解答题
计算:(1)
|
答案
(1)
+(-2011)0-(4
)-11 3
=2+1-3
=0;
(2)(2a-b)2+(a+b)(4a-b)
=4a2-4ab+b2+4a2-ab+4ab-b2
=8a2-ab.
计算:(1)
|
(1)
+(-2011)0-(4
)-11 3
=2+1-3
=0;
(2)(2a-b)2+(a+b)(4a-b)
=4a2-4ab+b2+4a2-ab+4ab-b2
=8a2-ab.