Thursday

July 24, 2014

July 24, 2014

Posted by **Alexandria** on Sunday, June 24, 2007 at 8:29pm.

1. n^2-n-20/2n^2 times n^2+5n/n^2-25

answer: n+4/2n

2. (2x-6/21)/(5x-15/12)

answer: 8/35

3. 5x-3/6 - x+3/6

answer: 2x/3-1

4. 5x/26 - 2x/13

answer: 1x/26

5. 3x^2/9x^5

answer: 1/3x^3

6. (x^2+2x-15/4x^2)/(x^2-25/2x-10...

answer: I'm not to sure but i think its x-3/2x^2

7. x+2/x/x-2/3x

answer: 3(x+2)/x-2

8. What values for x must be excluded in the following fraction?

9/x-8

answer: 8

9. x-13/x^2-x-12 + 3x-3/x^2-x-12

answer: 4/x+3

Sometimes it helps to use parentheses when typing these kinds of problems online. From what I can determine, these answers look correct, except for #3. (For #4, you can just state the answer as x/26.)

Here's #3 worked out:

(5x-3)/6 - (x+3)/6 =

(5x-3-x-3)/6 =

(4x-6)/6 =

2(2x-3)/6 =

(2x-3)/3

I hope this will help.

**Related Questions**

Algebra - Can someone tell me if these problems have the right answers? I am ...

Pre-Calculus - Could someone check my answers? 25. 32^(2x-3)=2 Answer- x= 8/5 26...

Algebra - Hello, can someone check my answers to the following Algebra questions...

Algebra - Would someone please check these answers? Simplify. 3/x-5+1/1-4/x-5 ...

8th Grade Algebra: Answer Check #2 - Add or Subtract (Radicals) { this means ...

8th Grade Algebra: Answer Check - Find the length of the 3rd side of each right ...

Algebra - I have this math probelm z-(3z)/(2-z)=(6)/(z-2) in my book it says to ...

Algebra 1 - Can someone please check my answers? Thank You 1) Find an equivalent...

Algebra 2 - Exponential Notation Simplify. (-2)^0-(-2)^3-(-2)^-1+(-2)^4-(-2)^-2 ...

algebra - Will someone check my work here and let me know if I am right. Thanks...