Question

help me pls with this question​

Answer 1

Answer:

$= > 27$

Step-by-step explanation:

$9x { }^{2} + \frac{1}{9x {}^{2} } = (3x - \frac{1}{3x } ) {}^{2} + 2 \\ \: \: \: \: \: \: \: = (5) {}^{2} + 2 \\ \: \: \: \: = 25 + 2 \\ = > 27$