Question

Evaluate 4x2 +3 when x=5

Answer 1

Answer:

43

Step-by-step explanation:

4(5)2 +3

(20)2+3

40+3

43

Answer 2

Answer:

103

Step-by-step explanation:

We substitute x with 5:

$4(5)^2+3$

Solve the exponent first:

$5^2 = 25$

Note: We are using order of operations (consecutively)

1. Parentheses
2. Exponents
3. Multiplication
4. Division
5. Addition
6. Subtraction

Multiply:

25 * 4 = 100

Add:

100 + 3 = 103

Our answer is 103