key43
key43
24-08-2017
Mathematics
contestada
witch of the following are the factors of 4b^2 - 16?
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choixongdong
choixongdong
24-08-2017
4b^2 - 16 = (2b + 4)(2b - 4)
difference of squares
a^
2
– b^
2
= (a + b)(a – b)
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