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OpenStudy (anonymous):
How do you use the square root method for the problem (y+7)^2=64
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OpenStudy (anonymous):
y^2+14Y+49=64
OpenStudy (anonymous):
Take the square root of both sides \[y+7=\pm \sqrt{64}\]
OpenStudy (anonymous):
y+7=8
OpenStudy (anonymous):
Its plus or minus... so you have two equations y+7=8 and y+7=-8 y=1 and y=-15
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