Question

Fill in the blank to make the equivalent rational expressions. (-4)/(v+9)=(?)/(-v-9)

Answer 1

\[\frac{ -4 }{ v+9 }=\frac{ ? }{ -v-9 }\] rearrange for ?
So \[\frac{ 4v+36 }{ v+9 }= \frac{ 4(v+9) }{ v+9 }\] Can you simplify that?

Answer 2

@sarahusher Why can't we just do this to begin with?

\[\frac{-4}{v+9} = -\frac{4}{v+9} = \frac{4}{-(v + 9)}\]

Answer 3

We can simplify that to figure out what's supposed to be in the question mark.

Answer 4

@Hero
I suppose you can, there are different ways of approaching it :)

Answer 5

thank you