- Thread starter krisolaw
- Start date

- Joined
- Apr 12, 2005

- Messages
- 9,790

Change it to this:krisolaw said:a/(a-b) + b/(a + b) + (a^2 + b^2)/(b^2 - a^2)

a/(a-b) + b/(a + b) - (a^2 + b^2)/(a^2 - b^2)

The Least Common Denominator should now be obvious.

I have this:Change it to this:

a/(a-b) + b/(a + b) - (a^2 + b^2)/(a^2 - b^2)

The Least Common Denominator should now be obvious.

a/(a-b) + b/(a+b) - (a^2 + b^2)/(a +b)(a-b) LCD is now (a +b)(a - b)

[a(a+b) + b(a - b) - (a ^2 + b ^2)]/(a + b)( a - b) then:

(a ^2 + ab + ab - b^2 -a^2 - b^2)/(a + b)(a - b) so combine like terms:

(2ab - 2b^2)/(a +b)(a - b) then:

2b(a-b)/(a+b)(a-b)

answer: 2b/(a+b)

Please check! Thanks again!!!