Question

if x+1/x=3, find the value of x^2+1/x^2 and x^3+1/x^3​

Answer 1

》 x +1 = 3x 》 x = 1/2

x^2 + 1/ x^2 = 1/4 + 4 = 17/4

x^3 + 1/x^3 = 1/8 + 8 = 65/8