Question

anybody solve now please​

Answer 1

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$\huge\underline\red{Answer:-}$

$they \: told \: that \\ 3x + \frac{1}{5x} = 3$

$3x + 1 = 8x \\ 1 = 8x - 3x \\ 1 = 5x \\ x = \frac{1}{5} \\ \\ now \: \: 25 {x}^{2} + \frac{1}{9 {x}^{2} } \\ = 25 \times {( \frac{1}{5} )}^{2} + \frac{1}{9 \times \ { (\frac{1}{5} )}^{2} } \\ = 25 \times \frac{1}{25} + \frac{1}{9 \times \frac{1}{25} } \\ = 1 + \frac{1}{9 \times \frac{1}{25} } \\ = 1 + \frac{1}{ \frac{9}{25} } \\ \\ = 1 + \frac{25}{9} \\ = \frac{34}{9} \\ 3.7$

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