1

Problem

Evaluate the expression \$2(c^2) + 4c - 7\$ when c = 3.

2

Step

The given expression is

\$2(c^2) + 4c - 7\$

3

Step

Substitute 3 in place of c in given expression

\$2(3)^2 + 4(3) - 7\$

4

Step

Make it simplify the equation

\$2 times 9 + 12 - 7\$

⇒ 18 + 5

⇒ 23

5

Solution

Therefore, when c = 3, the value of the expression \$2(c^2) + 4c - 7\$ is 23.

6

Sumup

Please Summarize Problem, Hint, Clue, Formula and Steps

Choices

7

Choice-A

The response is inaccurate as simplification yields 23, contrary to the expected outcome of 20

Wrong 20

8

Choice-B

This solution is accurate as we simplified it and obtained the outcome as 23

Correct 23

9

Choice-C

This step is not correct because by the simplification we got the result as 23, not 27

Wrong 27

10

Choice-D

The step isn’t correct; simplification yielded 23 instead of the expected 32

Wrong 32

11

Step

Option

B

12

Sumup

Please Summarize Choices