Question

(x)*(x-a)*(x-3a)/(3a-x)*(a-x)

Answer 1

What do you need?

Answer 2

to simplify it

Answer 3

well, you can work on it in chunks. First do the x*x-a

that will equal x^2 - xa

Answer 4

Then continue to multiply out until you have a polynomial over a polynomial.

Answer 5

the answer is supposed to be x

Answer 6

a well you can cross out the two terms x-a and 3a-x/x-3a becuase they are the same

Answer 7

this would leave you with x(-1) / (-1)

Answer 8

which is x

Answer 9

got it?

Answer 10

how is x-3a equal to 3a-x?

Answer 11

you must factor out a negitive 1 from -3a+x which gives you (-1)(3a-x)

Answer 12

so wouldn it be -x?

Answer 13

no becuase you have to do the same thing on x-a and a-x

Answer 14

thx