当a=-1,b=2时,求4a²·(-2ab)²-a²(a²b²-3a﹚
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当a=-1,b=2时,求4a²·(-2ab)²-a²(a²b²-3a﹚
当a=-1,b=2时,求4a²·(-2ab)²-a²(a²b²-3a﹚
当a=-1,b=2时,求4a²·(-2ab)²-a²(a²b²-3a﹚
当a=-1,b=2时,求
4a²·(-2ab)²-a²(a²b²-3a﹚ 在线等~速度~
=4a²×4a²b²-a^4b^2+3a^3
=16a^4b^2-a^4b^2+3a^3
=15a^4b^2+3a^3
=3a^3(5ab^2+1)
=3×(-1)³×(5×(-1)×2²+1)
=-3×(-19)
=57;
很高兴为您解答,skyhunter002为您答疑解惑
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你就往里代数呗,没算错的话是57吧
直接带进去,答案是57