Question

Answer me the seventh one

Answer 1

${x}^{2} + \frac{1}{ {x}^{2} } = ( {x - \frac{1}{x} })^{2} + 2 \times x \times \frac{1}{x} = {12}^{2} + 2 = 144 + 2 = 146$

Answer 2

hi frnd .here is ur ans . its done by using a^2+b^2 formula. Please mark it as brainliest...