Question

Решите уравнение  9/5x^2=7целых1/5

Answer 1

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Answer 2

9/5x^2=7целых1/5 
9/5x^2 = 36/5
5 x ^2  * 36 = 9*5
5 x ^2 = 4 * 5
5 x ^2 = 20
x^2 = 20 / 5
x^2 = 4
x1 = 2
x2 = -2

Удачи)))