Thursday

September 18, 2014

September 18, 2014

Posted by **Allison Anderson** on Thursday, December 1, 2011 at 10:00am.

- Math -
**Steve**, Thursday, December 1, 2011 at 10:52amIf what you typed means

(x-5)/(x-7) - (x-1)/(x+7) + (x-35)/(x^2-49) then

put everything over a common denominator. In this case, since x^2 - 49 = (x-7)(x+7) that will be our LCD.

The numerator will then be:

(x-5)(x+7) - (x-1)(x-7) + (x-35)

= x^2 + 2x - 35 - (x^2 - 8x + 7) + (x - 35)

= (11x - 77)

= 11(x-7)

Put that over (x-7)(x+7) and you have

11(x-7) / (x-7)(x+7)

= 11/(x+7)

- Math -
**PsyDAG**, Thursday, December 1, 2011 at 10:57amYou need to clarify your formula by spacing and/or parentheses.

x - 5/x - 7 - x - 1/x + 7 + x - 35/x^2 - 49 (?)

x - 5/(x-7) - x - 1/(x-7) + x 35/(x^2-49) (?)

**Answer this Question**

**Related Questions**

math- please help! - Please help with these 5 problems! I have the solutions but...

Math - Perform the indicated operations and simplify: i^-31

math 117 - perform the indicated operations and simplify z-4/z-6 - z+1/z+6 + z-...

Math - `Perform the indicated operations and simplify. (z-1)/(z-8)-(z+1)/(z+8)+(...

Math - Perform the indicated operations and simplify. (z-1)/(z-8)-(z+1)/(z+8)+(...

algebra - Perform the indicated operations and simplify. y-4/y-9 - y+1/y+9 + y-...

algebra - perform the indicated operations and simplify x-1/x-9-x+1/x+9+x-153/x^...

Algebra - Please perform the indicated operations and simplify (3x-5)^2-(2x+1)(x...

Algebra 1 - PERFORM THE INDICATED OPERATIONS AND SIMPLIFY. x-8/x-9-x+1/x+9+x-27/...

algebra - perform the indicated operations and if possibly simplify if a ...