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(x+5)(x+6)(x+7) =?
(x+5)(x+6)(x+7) = (x^2 + 6x + 5x + 30) (x + 7); = (x^2 + 11x + 30) (x + 7); = x^3 + 7x^2 + 11x^2 + 77x + 30x + 210; = x^3 + 18x^2 + 107x + 210
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Question
Asked 11/27/2008 1:21:53 PM
Updated 9/17/2014 4:11:26 AM
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(x+5)(x+6)(x+7) =?
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alfred123
(x+5)(x+6)(x+7)
= (x^2 + 6x + 5x + 30) (x + 7);
= (x^2 + 11x + 30) (x + 7);
= x^3 + 7x^2 + 11x^2 + 77x + 30x + 210;
= x^3 + 18x^2 + 107x + 210
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Added 9/17/2014 4:11:26 AM
This answer has been confirmed as correct and helpful.
Confirmed by
andrewpallarca
[9/17/2014 4:13:58 AM]
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