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How do solve z^2-6z-27=0 by factoring?

How do solve z^2-6z-27=0 by factoring?
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5 votes
How do solve z^2-6z-27=0 by factoring?

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User Sadiq
by
7.6k points

1 Answer

3 votes
z^2−6z−27=0

Factor left side of equation.

(z+3)(z−9)=0

Set factors equal to 0.

z+3=0 or z−9=0

z=−3 or z=9

answered
User Sifar
by
7.0k points
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