Question

if x- 1/x is equal to 9 ,find the value of x square + 1/x square
please give me answer of this question fast​

Answer 1

Answer:

Here is your answer

the answer is 79

Step-by-step explanation:

condition

$(x - \frac{1}{x} = 9)$

process

$(x - \frac{1}{x} ) {}^{2} = (9) {}^{2}$

$x {}^{2} + \frac{1}{x {}^{2} } - 2 = 81$

$x {}^{2} + \frac{1}{x {}^{2} } = 81 - 2$

therefore

$x {}^{2} + \frac{1}{x {}^{2} } = 79$