3 years ago

Evaluate 4x2 +3 when x=5

Mathematics

2 answers:

luda_lava [24]3 years ago

8 0

Answer:

Step-by-step explanation:

4(5)2 +3

(20)2+3

40+3

Molodets [167]3 years ago

7 0

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)

Parentheses
Exponents
Multiplication
Division
Addition
Subtraction

Multiply:

25 * 4 = 100

Add:

100 + 3 = 103

Our answer is 103

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