Question

1. Evaluate x2 + 3x for x = 8

Answer 1

The answer is 88

Explanation:

since x=8

x^2= 64

3x=3×8

=24

x^2+3x= 64+24

=88

Answer 2

Explanation:

Putting value of x

(8)2 + 3(8)

64 + 24

= 88