Question

Can you help me on this math problem pleaseee?

Answer 1

Answer:

a. - 1 3/4

b. 6

Step-by-step explanation:

For each, plug in the given number to the corresponding variable:

a. When x = -2. Plug in -2 for  x in the given expression:

2^(-2) - 2

Simplify. Note that when a negative sign is located in the power sign, you would do the normal power, and then put the number over 1.

2^(-2) = 1/(2 x 2) = 1/4

Simplify:

1/4 - 2 = - 1 3/4

- 1 3/4, or -7/4 is your answer.

b. When x = 3. Plug in 3 for x in the given expression:

2^(3) - 2

Simplify. First solve the power, then subtract:

2^3 = 2 * 2 * 2 = 4 * 2 = 8

8 - 2 = 6

6 is your answer.

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Answer 2

Answer:

a. - 1 3/4

b. 6