计算 (-3a的3次方)的2次方*a的3次方+(-4a)的2次方*a的7次方+(-2a的3次方)的3次方

2024-12-17 15:29:09
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回答1:

解答唤绝埋巧:和液姿

(-3a^3)^2*a^3+(-4a)^2*a^7+(-2a^3)^3
=9a^6*a^3+16a^2*a^7+(-8a^9)
=9a^9+16a^9-8a^9
=17a^9