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16. PLEASE HELP ME Solve the equation by factoring. z2 - 6z - 27 = 0 A. z = 3 or z = 9 B. z = –3 or z = 9 C. z = –3 or z = –9 D. z = 3 or z = –9
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16. PLEASE HELP ME

Solve the equation by factoring.

z2 - 6z - 27 = 0

A. z = 3 or z = 9

B. z = –3 or z = 9

C. z = –3 or z = –9

D. z = 3 or z = –9

User Valery
by
2.9k points

2 Answers

3 votes
The third one is a solution
User Eugene Mankovski
by
4.0k points
5 votes

Answer:

B

Explanation:

z^2 - 6z - 27 = 0

(z - 9)(z+3) = 0

z - 9 = 0 z + 3 = 0

z = -3, 9

User Andrea Nagy
by
3.4k points
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