Решите уравнение! 9класс. Created by vladosik22822. algebra-ru

Решите уравнение! 9класс...

StrangeStud 1/4 * x² - 36 = 0
0.25x² - 36 = 0
(0.5x)² - 6² =0
(0.5x - 6)(0.5x + 6)
0.5x - 6 = 0
0.5x = 6
x₁ = 12
0.5x + 6 = 0
0.5x = -6
x₂ = - 12 (меньший из корней)

Ответ : - 12

2 votes Thanks 1

zhenyaM2002

Verified answer

X^2/4-36=0 | домножим на 4
x^2-144=0
x^2=144
x1 = 12, x2 = -12

Ответ: x = -12

1 votes Thanks 0

Answers & Comments

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