Respuesta :

when you factor, you get the factors of a number, that, when multiplied back, will give you the original "question" (basically what the question was) 

factoring is basically done to ease the process of simplification ......... if u given (x2−4x+4)(x−2)2 and ask u to simplify it .... u will not able to think of anything... but if u factorize it u will get (x−2)2(x−2)2=1

See.... u was able to do that because u were able to factorize the denominator.. i f u couldn't do that.. u would never simplify that... and there r many more uses... this one is pretty basic hope this will help ya :)