nadiadulko894982 nadiadulko894982
  • 13-03-2020
  • Mathematics
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WILL MARK BRAINLIEST!!! HELP!​

WILL MARK BRAINLIEST HELP class=

Respuesta :

igoroleshko156
igoroleshko156 igoroleshko156
  • 13-03-2020

Answer:

Option B, z = 2

Step-by-step explanation:

Step 1:  Factor

z^2 - 4z + 4 = 0

(z - 2)(z - 2) = 0

Step 2:  Solve for z

z - 2 + 2 = 0 + 2 and z - 2 + 2 = 0 + 2

z = 2 and z = 2

Double root at z = 2

Answer:  Option B, z = 2

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