If x + 1/x = 4 find x² + 1/x²

1.	If x + 1/x = 4 find x² + 1/x²
Answer» ANSWER: ${x}^{2} + \frac{1}{ {x}^{2} } = ( {x + \frac{1}{x} })^{2} - 2.x. \frac{1}{x} \\ \\ = {4}^{2} - 2 \\ = 16 - 2 \\ = 14$

Answer»

ANSWER:

${x}^{2} + \frac{1}{ {x}^{2} } = ( {x + \frac{1}{x} })^{2} - 2.x. \frac{1}{x} \\ \\ = {4}^{2} - 2 \\ = 16 - 2 \\ = 14$

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If x + 1/x = 4 find x² + 1/x²​

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If x + 1/x = 4 find x² + 1/x²