(6mn+5n)(6m-5n)

=36m

^{2}-30mn+30nm-25n=36m

^{2}-25n-
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(6mn+5n)(6m-5n)

=36m^{2}-30mn+30nm-25n

=36m^{2}-25n

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Yes they are. Multiplication is commutative.

AB=BA

eg (4)(10)=(10)(4)=40

additionally, ABBA was a great soft rock group ;-)

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