You can put this solution on YOUR website! completely factor the expression: a^2+4b-ab-4a
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Rearrange:
a^2-4a-ab+4b
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Factor the 1st two terms and the last two terms separately.
= a(a-4)-b(a-4)
Factor again:
= (a-4)(a-b)
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Cheers,
Stan H.
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