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OpenStudy (anonymous):
factor perfect square 4z^2+28z+49 ?
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OpenStudy (anonymous):
(2x + 7)(2x + 7) (2x + 7)^2
OpenStudy (anonymous):
(2x+7)^2
OpenStudy (anonymous):
do you get that by factoring out 4?
OpenStudy (anonymous):
nope, you were told it's a perfect square so it will look like (ax + b)^2 a = the first coefficient's square root b = the constant term's square root
OpenStudy (anonymous):
oh ok
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