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

The given expression is

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

Substitute 3 in place of c in given expression

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

Make it simplify the equation

\$2 times 9 + 12 - 7\$

⇒ 18 + 5

⇒ 23

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

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

20

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

23

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

27

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

32

Option

B

Can you summarize what you’ve understood in the above steps?