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OpenStudy (anonymous):
A cube has a surface area of 6x^2+84x+294 find the length of the side (hint: first factor out of the GFC)
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OpenStudy (anonymous):
did you factor out the six?
OpenStudy (anonymous):
\[6(x^2+14x+49)\] is the first step second is to recognize \(x^2+14x+49\) as a perfect square, namely \[6(x+7)^2\]
OpenStudy (anonymous):
so the length of the side is \(x+7\)
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