# Math Help - Algebra expansion

1. ## Algebra expansion

How is this true??

2. ## Re: Algebra expansion

Try expanding all the brackets in the numerator and simplifying...

3. ## Re: Algebra expansion

I did that and I got k(3k+10) ...

4. ## Re: Algebra expansion

Is that expanding all the brackets?

yes

6. ## Re: Algebra expansion

Surely if you still have brackets with factors outside them, then it is NOT fully expanded.

7. ## Re: Algebra expansion

3k^2 + 10k , but it still doesn't come to what it is supposed to be.