Ответ:
(x+2)² = (3x+2)²
х^2 + 4х + 4 = 9х^2 + 12х + 4
х^2 + 4х - 9х^2 - 12х = 0
- 8х^2 - 8х = 0
- 8х ( х + 1) = 0
х ( х + 1) = 0
х = 0
х = - 1
Ответ : х = 0 ; - 1
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Ответ:
(x+2)² = (3x+2)²
х^2 + 4х + 4 = 9х^2 + 12х + 4
х^2 + 4х - 9х^2 - 12х = 0
- 8х^2 - 8х = 0
- 8х ( х + 1) = 0
х ( х + 1) = 0
х = 0
х = - 1
Ответ : х = 0 ; - 1