试题与答案

先化简,后求值: (1)4a3b-10b3-3a2b2+10b3-4a3b,其中

题型:解答题

题目:

先化简,后求值:

(1)4a3b-10b3-3a2b2+10b3-4a3b,其中a=-1,b=2.

(2)4(m-n)2-(m-n)-3(m-n)2+(m-n),其中m=3,n=-2.

答案:

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