maddymcg408 maddymcg408

03-08-2021
Mathematics

contestada

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

Respuesta :

donovynray0504 donovynray0504

03-08-2021

Answer:

B

Step-by-step explanation:

z^2 - 6z - 27 = 0

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

z - 9 = 0 z + 3 = 0

z = -3, 9

Answer Link

ieyred47 ieyred47

03-08-2021

The third one is a solution

Answer Link

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