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OpenStudy (anonymous):
solve the equation (3k+4)^2=64
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OpenStudy (mimi_x3):
9k^2 + 24k +16 = 64 9k^2 + 24k -48 = 0 Use the quadratic formula to solve for k
OpenStudy (anonymous):
I m dont know how to do that:(
OpenStudy (mimi_x3):
Use the quadratic formula: |dw:1319001165616:dw| a = 9 , b = 24 , c = -48 and just substitute it in. It's easy!
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