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OpenStudy (anonymous):
What are the solutions of the equation? z² – 6z – 27 = 0
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OpenStudy (karatechopper):
first u need to factor
OpenStudy (anonymous):
(x-9)(x+3)=0
OpenStudy (anonymous):
x=9, x=-3
OpenStudy (anonymous):
z^2 -9z+3z-27=0 z(z-9)+3(z-9)=0 (z+3)(z-9)=0 z=-3 or 9
OpenStudy (anonymous):
sorry its z
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