Question

Evalute b^2+ 4, if b = -3
13
10
- 5
-2

Answer 1

13

Explanation:

When we want to find the value of an expression and we know the unknown values of the variables, we just have to plug them in:

b^2 + 4, and we know b = -3

= (-3)^2 + 4

= 9 + 4

= 13

Answer 2

13

Explanation:

b^2+4

Let b = -3

(-3)^2 +4

9+4

13