One of the factors of (9x²-1)-(1+3x)² is. A. 3+x B.3-x C.3x-1 D.3x+1
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3x-1is the correct answer
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Answer:
Step-by-step explanation:
Firstly we will do, (9x^2-1)(3x+1)(3x-1)
=now, (3x+1)(3x-1-1-3x) -2(3x+1)
So the answer is 3x+1.
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