Question

If x=2+√3, show that x^3+1/x^3=52

Answer 1

Step-by-step explanation:

pls mark as brainliest

Answer 2

Answer:

...

Step-by-step explanation:

x=2+√3

so, 1/x = 1/(2+√3)

= 2- √3

then, x³+1/x³

= (x+1/x)³ - 3.x.1/x(x+1/x)

=(2+/√3+2-√3)³ - 3(2+√3+2-√3)

= (4)³- 12

= 64 - 12

= 52.