what is the result of (2x-1) (2x+1) by multiplying the binomials?

this is the problem i need help on! please help! :)

 

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1 Answer

A is the answer.  Remember First Outer Inner Last

(2x-1)(2x+1)

4x^2 + 2x -2x  -1

4x^2 - 1
by

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