SOLUTION: i dont really understand this either really; x^2-9/x-2 * x^2-4/x-3
i think i solved it totally wrong since i first multiplied the top then the bottom and got x^4 - 13x^2 +36 / x^2
Algebra.Com
Question 144816: i dont really understand this either really; x^2-9/x-2 * x^2-4/x-3
i think i solved it totally wrong since i first multiplied the top then the bottom and got x^4 - 13x^2 +36 / x^2 - x - 6.
could someone please show me how to solve it right?
Answer by solver91311(24713) (Show Source): You can put this solution on YOUR website!
Both of the numerators are the difference of two squares, so factor them:
Multiply numerators and denominators, just like you would any other fractions:
Eliminate factors common to both numerator and denominator because for all real :
And that's really how it works, really. Commit that "difference of two squares" factorization pattern to memory, you will see it and need to use it many times before you have completed all of your math education.
RELATED QUESTIONS
since i didnt understand the multiplying part, i didnt really understand the division... (answered by solver91311)
i totally dont understand this problem; (x-3/2)^2 * (1/x-3)^2
could someone may be... (answered by vleith)
Someone should sue al-khwarizmi or the greeks for even iventing algebra! lol
since i am (answered by jim_thompson5910,Earlsdon)
This is not the right category i don't think but i really need help with this problem. I... (answered by solver91311)
hi....i really need ur help....i solved this problem but don't know if i get it... (answered by HyperBrain)
Hi I need help with a few math problems. I was sick when the teacher gave us the lesson.... (answered by jim_thompson5910)
I guess algebra just really isnt my strongest point, could someone help me here,
I... (answered by solver91311)
Could someone maybe help me out with these two please:
How do I use synthetic division (answered by solver91311)
i really dont understand the solving for y or... (answered by mananth)