If x + 1/x = 3, find x^2 + 1/x^2 and x^3+ 1/x^3

1.	If x + 1/x = 3, find x^2 + 1/x^2 and x^3+ 1/x^3
Answer» ANSWER: ${x }^{2} + 1 \div {x }^{2} = 7$ ${x}^{3} + 1 \div {x}^{3} = 27 - 9 = 18$

Answer»

ANSWER:

${x }^{2} + 1 \div {x }^{2} = 7$

${x}^{3} + 1 \div {x}^{3} = 27 - 9 = 18$

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If x + 1/x = 3, find x^2 + 1/x^2 and x^3+ 1/x^3​

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If x + 1/x = 3, find x^2 + 1/x^2 and x^3+ 1/x^3