Question

Simplify -12x^4/x^4+8x^5

A.-12/1+8x; where x doesn't =-1/8
B. -12/1+8x; where x dose t =-1/8,0
C. -12/9x; where x doesn't =0
D. -12/9

Answer 1

First Rule to Use: Factor

Answer 2

Which part? Sport I missed a lot. D:

Answer 3

Both the top and bottom

Answer 4

Always try to factor both the top and bottom

Answer 5

Here, the top (numerator) does not factor any further

Answer 6

So factor the denominator.

Answer 7

Yes!

Answer 8

Since you are trying to simplify, try to factor out a term that is in the numerator

Answer 9

Does that make sense?

Answer 10

Would the GCF be 4?

Answer 11

What number/variable can you factor out of x^4 + 8x^5 that is the numerator?

Answer 12

-12x^4/x^4(1-8x)?

Answer 13

yes-great job!

Answer 14

Do you know how to simplify from there?

Answer 15

-12/(1-8x)
12/(8x-1)
Is that right?