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OpenStudy (anonymous):
Can someone check this for me. Multiplying a polynomial. (x + 7)(x + 3) = (x + 7)(x) + (x + 7)(3) = x(x) + 7(x) + x(3) + 7(3) =x^2 + 7x + 3x + 21 = x^2 + 10x + 21
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OpenStudy (mathteacher1729):
Looks good! :D
OpenStudy (anonymous):
thanks!
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