Answered

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3x^4 - 243
Factoring

Sagot :

clarch19

Answer:

x = ±3

Step-by-step explanation:

(3x² + 27)(x² - 9) = 0

(3x² + 27)(x + 3)(x - 3) = 0

3x² = -27

x² = -9  

x = √-9  (this will result in an imaginary number)

x + 3 = 0

x = -3

x - 3 = 0

x = 3

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