## Natz0213 3 years ago Essay: Show all work. Find the following quotient: 25x^2-100y^2/5x+10y

1. rickjbr

Difference of 2 squares in the numerator, can you factor those?

2. Natz0213

what do you mean

3. rickjbr

$a^2-b^2=(a-b)(a+b)$

4. rickjbr

look familiar?

5. Natz0213

yes but i never know how to plug the numbers in

6. rickjbr

what is$\sqrt{25x^2}$

7. Natz0213

5x^2

8. rickjbr

close

9. rickjbr

what is$\sqrt{x^2}$

10. Natz0213

x^1.41

11. rickjbr

$\sqrt{x^2}=x$

12. dgo

can you explain that rick? and then retrice natz the original question?

13. dgo

14. Natz0213

huh dgo

15. dgo

i typed a s s k i think

16. dgo

anyhow I am wondering what you are taking away from all the answers youve been getting. are you learning how to do this stuff?

17. Natz0213

yes i have learned a lot from this website i just have a hard time grasping it .It takes me to learn it mre than once before i got it all the way

your answer is 5x-10y use difference of squares to simplify into: $(5x+10y)(5x-10y)\div(5x+10y)$ (5x+10y) crosses out from the equation because $(5x+10y)\div(5x+10y)=1$ so you are left with 5x-10y

19. dleather25

same for me natz haha ive learned a lot from this website, just takes me so long

20. Natz0213

it is just math is my worst subject

21. Natz0213

addrigonzalez is that the whole problem

22. dgo

it should be, you are looking for a quotient, right? so if 6 is divided by 3, the quotient is 2

24. Natz0213

yes they cross out eachother

25. dleather25

i love math, we are on derivatives in college and i just dont understand my foreign teacher or whay we even need derivatives in the first place

26. dleather25

derivatives are unnessecary