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25-02-2018
Mathematics

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Find the positive solution of x when:

25 = 4/x²

Respuesta :

25-02-2018

1) Multiply both sides by x²

[tex]25 {x}^{2} \: = \: 4[/tex]

2) Divide both sides by 25

[tex] {x}^{2} \: = \: \frac{4}{25} [/tex]

3) Square root both sides

[tex]x \: = \: \frac{2}{5} [/tex]

Viola!

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