Question

If x=3 calculate the value of
x3+x

and if X=-3 calculate the value of X3+3
​

Answer 1

if X =3 then X would be equal to 12

Explanation:

x3+x

put x=3

(3)3+3

9+3

12

Answer 2

Explanation:

`x=3 \\3(x)+x\\3(3)+3\\9 +3\\= 12\\ X= - 3 \\ 3(x)+x\\3(-3)+(-3)\\-9-3\\= -12`