Evaluate the expression described below if the number is 4. the difference between a number squared and the number.
a. 0
b. 4
c. 12
d. 20

C) 12.

Step-by-step explanation:

Given  : if the number is 4. the difference between a number squared and the number.

To find : Evaluate the expression described below.

Solution : We have given

Number = 4 .

According to question :

difference between a number squared and the number.

Number squared = (4)².

Number =  4

Then Difference =  (4)²  - 4.

Difference =  16 - 4.

Difference =  12.

Therefore, C) 12.

a.

step-by-step explanation:

step 1 distribute 2 to every term in the parentheses

step 2 add 10 on both sides of the equal sign