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storchak [24]
3 years ago
12

Solve the equation by factoring. z2 − 6z − 27 = 0

Mathematics
1 answer:
Kisachek [45]3 years ago
7 0
The answer is x= 9 and -3

You must fine 2 number that multiply to equal -27 and add to equal -6

(x-9) (x+3)
Then equal the parts of the binomial to zero

x - 9 = 0
x + 3 = 0

You must get x by its self.
When you do so, you'll have the answer as -3 and 9
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