## anonymous 5 years ago 4x+3 * x+3 do i cancel out the 3?

1. anonymous

$(4x+3)(x+3)?$

2. anonymous

order of operations? and foil.

3. anonymous

$4x^2+15x+9$

4. anonymous

Here was the original expression. $4x+3 \over x-5$ $\times$$x-5 \over x+3$

5. anonymous

how do i go from there?

6. anonymous

you can cancel out the (x-5)

7. anonymous

thats what i thought , what would i do from there though?

8. anonymous

then you would have 4x+3/x+3 not much you can do. what was the question asking you do?

9. anonymous

This is what the question says, Use your understanding of multiplying and dividing fractions to rewrite the expressions below. Then look for "ones" and simplify. For each rational expression, also stadte any valuses of the varibles that would make the denomintaior zero. here is the full question... http://hotmath.com/help/bookindexes/cpm06/index.html?myhm=true#pid=cpm06_10_1_Classwork_10-15_412

10. anonymous

valuses of the varibles that would make the denomintaior zero would be x= -3

11. anonymous

valuse of the variable that would make the denomintaior zero would be x= -3

12. anonymous

how did you come to find that?

13. anonymous

valuse of the variable that would make the denomintaior zero would be x= -3

14. anonymous

what is the simplified version?

15. anonymous

this is the simplest 4x+3/x+3 nothing else you can do

16. anonymous

$x \neq -3$ then the whole thing would be Undefined Slope, No Slope