Question

What is the value of 2 left-parenthesis 4 i squared right-parenthesis plus 22?

Answer options with 5 options
A.
negative 42

B.
negative 10

C.
14

D.
30

E.
54

Answer 1

u sure

Answer 2

Recall that i is defined as the square root of -1. Therefore, i squared is equal to -1.

To find the value of the expression, we substitute i squared with -1:

2(4 * -1) + 22

Next, we simplify the multiplication:

2(-4) + 22

We multiply -4 by 2:

-8 + 22

Finally, we add -8 and 22:

14

Therefore, the value of the expression is 14.

The correct answer is: C. 14

Answer 3

Apologies for the error in my previous response. You are correct; I made a mistake in the calculations.

To find the value of the expression 2(4i^2) + 22, first calculate 4i^2:

4i^2 = 4(-1) = -4

Now we substitute this value into the expression:

2(-4) + 22 = -8 + 22 = 14

Therefore, the value of the expression is 14.

The correct answer is: C. 14