Question

Check this? @mathstudent55 @thomaster @whpalmer4 @johnweldon1993 @Kainui

Which statement explains how to simplify the expression 4^2/4^-3?
A. Keep the common base and subtract the exponents.
B. Keep the common base and divide the exponents.
C. Keep the common base and multiply the exponents. <---
D. Keep the common base and add the exponents.

Answer 1

I'm afraid that's wrong. Whenever you have something to an exponent over something with exponent, if the "something" is the same, then you subtract the bottom exponent from the top one.

Answer 2

K...Can you show me how to do it? I kinda really need to know this stuff.

Answer 3

Sure. I'll draw an example.

Answer 4

@CrazyCountryGirl ?

Answer 5

You subtract x^10-x^5?

Answer 6

Kinda. In a way you're right, but the way you state it is wrong. The way you state it is solved by dividing 10/5. So, rewrite it as X^(10-5), and you're right.

Answer 7

Oh! I get it, thanks!

Answer 8

Ok, then I have one more I'd like you to try, just to make sure you get it. Alright?