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06-10-2016
Mathematics

Answered

How to Factor 4x^2 -121

Verified Answer :

apologiabiology apologiabiology

06-10-2016

difference of 2 perfect squares
for
a^2-b^2=(a-b)(a+b)

so
(2x)^2-(11)^2=(2x-11)(2x+11)

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