perform indicated operation. Write in lowest term

Question

1. x^2-2x-35/x^2+10x+25*x^2+4x-5/x^2-8x+7

2. 16-x^2/x^3+64*x^2/x^2-2x-8 divded by x^2+4/x^2-4x+16

3. 3x^2-6x-105/x^2-3x-28 divided by x+5/4x+16

4. 4/x-3-2/x+1

5. 3/x^2-4x+4-2/x^2-4

6. 2x-3+3/x-2

7. 9+2/2a+1-a/a^2

Answer 1

1. [(x² - 2x - 35)/(x² + 10X + 25)][(x² + 4X -5)/(x² - 8x + 7)]              (I assume this is the equation that was

   

    {[(X + 5)(x - 7)]/[X +5 )(x + 5)]}{[(x + 5)(x - 1)]/[(x - 1)(x - 7)}}        that was intented)

 

    [(x - 7)(x + 5)][(x + 5)(X - 7)]

 

     (x + 5)²(x - 7)²   :ANSWER

 

You have not indicated the grouped term operations clearly enough.  I had to guess with the first eq. Just by adding a few () [] {} you can prevent hours of wasted time by students, it is a courtesy from one mathematician

to another.

May the Supreme Architect of the Univerve watch over you.and yours,

Prof Bill A . ' , A , ' ,