# math/algebra

posted by .

Division:
x^2 + 2x - 15over 4x^2 divided by x^2 -25 over 2x-10 Will someone show me the steps to work this problem, I have looked and looked at my book but it still makes no sense to me. Help.

First, change the division to the reciprocal of muliplication. Check this, it depends on my understanding of your problem.

(x^2+2x-15) * (2x-10)/(x^2-25)

Now each of those can be factored, do so. It should reduce very quickly.

multiply by the reciprocal of the second fraction (...basically just flip it over)

originally you have....

x^2 + 2x - 15
_____________

4x^2

_______________

x^2 - 25
_________

2x - 10

Then you'll get

x^2 + 2x - 15 2x - 10
_____________ x _________

4x^2 x^2 - 25

Factor everything and simplify

-------------------------------------
Hope this helps!!!

sorry i don't know why it came out so messed up.

Anway...

Try to follow the instructions of either bob or I (they are the same)

## Similar Questions

1. ### english

are both of these a compound or simple sentences I need to have these as a model for the other one's. 1. Her mother went to trade show, but doreen stayed home. 2. Wang and his brother looked at the problem and spotted the solution. …
2. ### Math

Here is the math problem. 150 is 75% of what number?

What are some facts that could be used to prove the history of "the ameicans won the war of 1812 I have looked and looked and looked and I can't really find anything. Could someone please help by giving me some facts or places that …
4. ### algebra

an someone show me the steps to solve this problem?

Find the value fir each expression. Show your work. (13.28 - 7.8) divided by 4. I have the answer in the back of my book and when I try to work the problem out I keep getting the wrong answer. The answer is supposed to be 1.345 I can …
6. ### calculus

Okay, so I have this problem... this was the original: (t^2-1?
7. ### Math

Explain how the answers for 20 divided by 1/7 (140), 20 divided by 2/7 (70) and 20 divided 6/7 (23 1/3) are related. Show why this makes sense.
8. ### Science

i need detailed chemical properties for the element arsenic. i looked on the websites online and i looked in my text book
9. ### Chemistry

i need some chemical properties of the element arsenic.i have looked online and havent found any i have also looked in my book.
10. ### English

1. She looked depressed[blue,down]. 2. She looked up/high. 3. She looked lively. ------------------------------- Can #2 and #3 be the opposite of #1?

More Similar Questions