bufjasmine bufjasmine

27-04-2015
Mathematics

Answered

Simplify the product using FOIL.
(3x - 7) (3x - 5)

A. 9x² + 6x + 35
B. 9x² + 36x + 35
C. 9x² - 36x - 35
D. 9x² - 36x + 35

Answer :

julxaaaa julxaaaa

27-04-2015

foil stands for first,outer,inner,last
3x * 3x = [tex]9 x^{2} [/tex]
3x*-5= -15x
-7*3x= -21x
-7*-5= -35
then you add like terms
[tex]9 x^{2} -36x-35[/tex]
the answer is choice c

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