化简a^2+(5a^2-2a^2)-2(a^2-3a)

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化简a^2+(5a^2-2a^2)-2(a^2-3a)
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化简a^2+(5a^2-2a^2)-2(a^2-3a)
化简a^2+(5a^2-2a^2)-2(a^2-3a)

化简a^2+(5a^2-2a^2)-2(a^2-3a)
a^2+(5a^2-2a^2)-2(a^2-3a)
=a^2+3a^2-2a^2+6a
=2a^2+6a

a^2+(5a^2-2a^2)-2(a^2-3a)
=a^2+3a^2-2a^2+6a
=2a^2+6a

a^2+(5a^2-2a^2)-2(a^2-3a)
=a²+3a²-2a²+6a
=2a²+6a

a^2+(5a^2-2a^2)-2(a^2-3a)
=a²+3a²-2a²+6a
=2a²+6a
=2a(a+3)