Question

2 Evaluate the following expression when x = 2. x3 + 7x + 2

A. 24
B. 22
C. 10
D. 9​

Answer 1

B

Explanation:

Since x is 2 wherever you see x put 2

solve x3 + x7+ 2

=(2)3 + (2)7 + 2

= you do the number outside the bracket multiplied by the number inside the bracket

like this

=(2 × 3) + (2 × 7) + 2

= 6+ 14 + 2

= 22