(-3a³)²·a³+(-4a)²·a^7-(5a³)³(-3a³)²·a³+(-4a)²·a^7-(5a³)³
来源:学生作业帮助网 编辑:作业帮 时间:2024/07/30 11:54:27
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(-3a³)²·a³+(-4a)²·a^7-(5a³)³(-3a³)²·a³+(-4a)²·a^7-(5a³)³
(-3a³)²·a³+(-4a)²·a^7-(5a³)³
(-3a³)²·a³+(-4a)²·a^7-(5a³)³
(-3a³)²·a³+(-4a)²·a^7-(5a³)³(-3a³)²·a³+(-4a)²·a^7-(5a³)³
解
(-3a³)²×a³+(-4a)²×a^7-(5a³)³
=(9a^6)×a³+16a²×a^7-125a^9
=9a^9+16a^7-125a^9
=(9+16-125)a^9
=-100a^9
=9a^6*a^3+16a^2*a^7-125a^9
=9a^9+16a^9-125a^9
=-100a^9