a³·a^4·a+(a²)^4+(-2a^4)²

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a³·a^4·a+(a²)^4+(-2a^4)²

a³·a^4·a+(a²)^4+(-2a^4)²
=a^8+ a^8+4a^8
=6a^8

a³·a^4·a+﹙a²)^4+﹙﹣2a^4)²
=a^8+a^8+4a^8
=6a^8.

a^3·a^4·a+(a^2)^4+(-2a^4)^2
=a^8+a^8+4a^8
=6a^8