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
(-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
数学人气:457 ℃时间:2019-12-18 23:06:04
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