Question

If x +1/2 = 3 find x^3+1/x^3​

Answer 1

Answer:

Step-by-step explanation:

X=5/2

X³=125/8;1/X³=8/125

125/8+8/125=3125+64/970

3189/970

Answer 2

X=3-1/2

X=5/2

Then X3+1/X^3=X^4/X^3

=X

=5/2