Sunday, May 19, 2013

how do you find the product of (9x-7)(9x+4) ?

Distribution is the property that allows us to multiply polynomials 

(9x-7)(9x+4)= 
9x(9x+4)-7(9x+4)= 
81x^2+36x-63x-28= 
81x^2-27x-28= 


:)
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