Idek what this is! help!!

its 3!

Step-by-step explanation:

Let 'x' be the missing exponent.

Then,

8  =  2x

To get the same base on both sides, write 8 in terms of 2 using exponent.

23  =  2x

Equate the exponents.

3  =  x

So, the missing exponent is 3.

hello from mrbilldoesmath!

answer:

x - 3

discussion:

x^2 - 9 = (x-3) (x+3)   so

(x^2-9)/ (x + 3) = x-3

you,

mrb

1. d.90

2. e. none of these (80)

3. a. 0

4. b. 6

5. e. none of these (10)

6. a. 5