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Mathematics 8 Online
OpenStudy (anonymous):

USE FOIL to find the product (4x^7-3)(x^9-4) I got 4x^16-3x^9-16x^7-16 Is this correct?

sam (.sam.):

Not -16 but +12

sam (.sam.):

Check your work again

OpenStudy (anonymous):

oh at the end I see. Thank you for catching that

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