Matematika QUIZ(12/100)..4x² - 6x = 4.nilai x = ..​

sylvanwalshulv – June 07, 2023

QUIZ(12/100)

..

4x² - 6x = 4

.

nilai x = ..​

x = –½   atau   x = 2

 

Pembahasan

4x² – 6x = 4

⇒ 4x² – 6x – 4 = 0

⇒ 2(2x² – 3x – 2) = 0

⇒ 2x² – 3x – 2 = 0

⇒ 2x² – 4x + x – 2 = 0

⇒ 2x(x – 2) + (x – 2) = 0

⇒ (2x + 1)(x – 2) = 0

⇒ 2x + 1 = 0  atau  x – 2 = 0

⇒ 2x = –1   atau   x = 2

⇒ x = –½   atau   x = 2

 

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