Question

Which is the simplified form of 18 times q to the fourth power times r all over 6 times q cubed times r to the fifth power.?

3 times r to the fourth power all over q.

12 times r to the fourth power all over.

3 times q all over r to the fourth power.

12 times q all over r to the fourth power.

Answer 1

18rq^4 /6q^3 *r^5 ?

Answer 2

Split it up:
(18/6) (r/r^5)(q^4/q^3)

Answer 3

yes thats right

Answer 4

How to do one of the terms: r/ r^5 = r^1 * r^-5 = r^-4 = 1/r^4

Answer 5

idk, i dont get this question

Answer 6

18 - r = 18-r. I can't get a good answer like 4 with that. Since they're multiplied, you can split it up like I did: (18/6) (r/r^5)(q^4/q^3). 18 can be divided by 6, r can be divided by r^5, likewise with q^4/q^3.

Answer 7

The equation is equivalent to:
18 * r * q^4
----------------
6 * r^5 * q^3

Answer 8

Do you know how to divide exponents?

Answer 9

no

Answer 10

Okay, when you're dividing exponents like: x^5/x^3 , what you're really doing is x^(5-3). X is the same for both of them, so you can do that. They won't divide if it's something like x^4/y^3. x^(5-3) = x^2. If it was x^3/x^5, you would go x^(3-5) = x^-. 2. x^-2 = 1/x^2. Can you solve it now?

Answer 11

Was I confusing in explaining it?

Answer 12

I can't just give you the answer, you have to be able to learn it yourself.

Answer 13

yeah... i still dont get it thats why. but its fine ill just teach myself.

Answer 14

Divide 18 by 6. What did you get?

Answer 15

3

Answer 16

Good. Now watch this: