If x + 1/x =3, find the value of x³ + 1/x²
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Answer:
x^3 + 1/x^3 = 18
Step-by-step explanation:
(x+1/x)^3 = 3^3
x^3 + 1/x^3 + 3*3 = 27
x^3 + 1/x^3 = 27-18
x^3 + 1/x^3 = 18
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