confusing: 7/(12 x^2) - 1/(36 x), 7/(x + 4) + 4/(x + 3), etc

[golden14]

these problems are confusing me.

#5. (7) / (12 x^2) - (1) / (36 x)

#6. (7) / (x + 4) + (4) / (x + 3)

#7. (2x) / (x^2 - 25) - (7) / (4x - 20)
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Edited by stapel -- Reason for edit: Making expressions legible

 

[galactus]

Re: im stuck pleaseeeee help me!!

They're confusing me too. It got mixed up. Try using LaTex or proper grouping symbols.

But, I am going to guess this is what you mean.

1. \(\displaystyle \frac{7}{12x^{2}}-\frac{1}{36x}\)

2. \(\displaystyle \frac{7}{x+4}+\frac{4}{x+3}\)

3. \(\displaystyle \frac{2x}{x^{2}-25}-\frac{7}{4x-20}\)

Now, what are you supposed to do?.

 

[golden14]

Re: im stuck pleaseeeee help me!!

ok ill do that. just add/subtract them.

 

[stapel]

just add/subtract them.

Okay; then add and subtract them! :wink:

They're fractions, so first you'll need to convert them to common denominators. How far have you gotten in that process? Please be complete. Thank you!

Eliz.