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OpenStudy (anonymous):
Complete the square Vsquared + 10v -21 = 0
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OpenStudy (anonymous):
take half the middle coefficent........
OpenStudy (anonymous):
so 5v
OpenStudy (anonymous):
just 5
OpenStudy (anonymous):
square it
OpenStudy (anonymous):
then add and subtract that value from the left side of the equation, should look something like this: v^2+10v+25-25-21=0 (v+5)^2-46=0
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OpenStudy (anonymous):
thank you
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