myiatucker2 myiatucker2

17-04-2021
Mathematics

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3(x-4)^2=27 solution

Respuesta :

clarch19 clarch19

17-04-2021

Answer:

x = 11

x = 7

Step-by-step explanation:

divide each side by 3 to get:

(x-4)² = 9

(x-4)² is the difference of two squares and has these factors:

(x+2)(x-2) = 9

x + 2 = 9; x = 7

x - 2 = 9; x = 11

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