Question

Help Please! Reduce rational expression,

x to 2 power-9 5x-x to the 2 power x-4
_______________muli __________________ div ________
x to 2 power-5x x to 2 power-x-12 x to 2 power -8x+16

Thank you.

Answer 1

i got 1 but i know that can't be right.

Answer 2

\[\frac{(x+3)(x-3)}{x(x-5)} \times \frac{-x(x-5)}{(x-4) (x+3)} \times \frac{(x-4)(x-4)}{(x-4)}\]

Answer 3

wow, that was HUGE.

Answer 4

yes! so it is 1?

Answer 5

solving..

Answer 6

isnt it -(x-3) ?

im still checking.

Answer 7

yes it must be x-3, everything else cancels each other out

Answer 8

?

Answer 9

Right,
so it's

-x+3

Answer 10

why is it negative?

Answer 11

check in the second fraction, i took -x common instead of x. Later the x cancels leaving behind -1.

Answer 12

So,

-1( x-3)

-x + 3

Answer 13

yes, i see... got it, thank you.

Answer 14

little things like that always screw me up.

Answer 15

lol.

Answer 16

so i have six more problems to do, if your up to it

Answer 17

Sure.