what is x^2-25 factored?

Question

saifoo.khan · Answer

Do you know about differences of squares?

anonymous · Answer

no

anonymous · Answer

(x + 5) (x - 5) did you want help finding out HOW or are you just looking for answers?

anonymous · Answer

$$x^2-5^2=y$$$$=(x-5)(x+5)$$

anonymous · Answer

how did u do that, like what question did you ask yourself to get that answer @WTFork

anonymous · Answer

wtfork... LOVe your name lol

anonymous · Answer

do you know about the FOIL method?
because basically factoring is just doing the opposite of FOIL. 
and when it's a perfect square, factoring is really easy. :) I am not that good at explaining but I can try if you are still confused. :P

anonymous · Answer

@matineesuxxx Thank You! xD

anonymous · Answer

Emily, ANYTIME that you have a binomial in the form of $$y=a^2-b^2$$ it is written as $$y=(a-b)(a+b)$$

anonymous · Answer

okay so instead of foiling the answer you gave me, I use the answer I was given to get it in foil form? @WTFork

anonymous · Answer

Yeah, pretty much. And what @matineesuxxx just said is really helpful :D

anonymous · Answer

here is an example $$y=49x^2-16y^2z^2\=7^2x^2-4^2z^2y^2\=(7x-4zy)(7x+4zy)$$

anonymous · Answer

thanks fork :)

anonymous · Answer

well emily, I hope we helped ya. Let me know if you need any more help! good luck! :)