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OpenStudy (anonymous):
multiplication of functions: (fg)x where f(x)=5x^2-4 and g(x)=2x+5 using foil method
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OpenStudy (ivettef365):
(5x^2-4)(2x+5)
OpenStudy (ivettef365):
do you know how to multiply
OpenStudy (anonymous):
yeah..why?
OpenStudy (ivettef365):
all you need to do is multiply as follows: (5x^2)(2x) = 10x^3 (5x^2)(5) = 10x^2 (-4)(2x) = ?? (-4)(5) = ??
OpenStudy (ivettef365):
sorry (5x^2)(5) = 25x^2
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OpenStudy (anonymous):
okay! i get it1 thanks!
OpenStudy (ivettef365):
yw :)
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