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( ab – 2 ) ( a – b + 6 + ab ) equals?

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Roseanncuaid
used distributive property
(ab-2)(a-b+6+ab)
=a^2b-ab^2+6ab+a^2b^2-2a+2b-12ab
=a^2b^2+a^2b-ab^2-6ab-2a+2b
Bellalesseid
(ab - 2) (a - b + 6 + ab)

[tex]a ( ab - 2) - b ( ab - 2) + 6 ( ab - 2) + ab ( ab - 2)[/tex]
[tex] a^{2}b - 2a - ab^{2} + 2b + 6ab - 12 + a^{2} b^{2} - 2ab[/tex]