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OpenStudy (anonymous):
Is my answer correct? Factor completely. 16x2 - 4 Answer: 2(2x + 1)2
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jimthompson5910 (jim_thompson5910):
no it's not use the difference of squares rule
OpenStudy (anonymous):
NO....
OpenStudy (anonymous):
4x^2 is going to be your answer
OpenStudy (anonymous):
4(2x - 1)(2x - 1)
jimthompson5910 (jim_thompson5910):
16x^2 - 4 4(4x^2 - 1) 4((2x)^2 - 1^2) 4(2x - 1)(2x + 1) So you are close, but it's - then + or + then - (not just - then -)
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OpenStudy (anonymous):
4(2x - 1)(2x + 1)
jimthompson5910 (jim_thompson5910):
yep
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