Question

Add the following: 4/3x+15 + 2x/x^2-25

Answer 1

@Loujoelou :p

Answer 2

Yay @agentx5

Answer 3

Makalyla, can you put parenthesis around what you intended please?


2x/x^2-25 for example means, by order of operations
\[\frac{2x}{x^2}-25\]

But 2x/(x^2-25) is:
\[\frac{2x}{x^2-25}\]


Order of Operations (PELMDAS)
1. Parenthesis
2. Exponents & Logarithms
3. Multiplication & Division
4. Addition & Subtraction


Make sense? Lots of people forget that on this website it seems, it would really help out all the people who volunteer to try to answer :-D

Answer 4

What you're looking for to solve these is something called the Greatest Common Denominator, GCD for short.

Answer 5

A:10x-20/3(x+5)(x^2-25) C: 8x/(3x+15)(x^2-25)
B: 2x+4/3(x+5)(x-5) D:10(x-2)/3(x-5)(x+5)

Answer 6

Assuming this:

4/(3x+15)+(2x)/(x^2-25) <-- parenthesis!

Factor x^2 -25 to see it's (x+5)(x-5)

GCD is then (3)(x+5)(x-5)

so...

\[\frac{10(x-2)}{3(x-5)(x+5)}\]

Answer 7

So D. (:

Answer 8

I see.