quotient in simplest form.
x+4/x-4 division sign x^2-16/4-x
2007-06-12 17:41:16 · 4 answers · asked by mecca laran 4 in Science & Mathematics ➔ Mathematics
factor x²-16 into (x+4)(x-4), and flip fraction you're dividing by:
[(x+4) / (x-4)] • {(4-x) / [(x+4)(x-4)]} =
[ 1 / (x-4)] • [ -1/1] =
-1 / (x-4)
2007-06-12 17:49:52 · answer #1 · answered by Philo 7 · 1⤊ 0⤋
x+4/x - 4 divided by x^2 - 16/4 -x
x+4/x-4 multiply by 4-x/x^2 - 16
x+4/x-4 multiply by -(x -4)/(x-4) (x+4)
Same numerator and denominator will cancel out
-1/x-4 ==> the answer
2007-06-13 00:54:04 · answer #2 · answered by detektibgapo 5 · 0⤊ 0⤋
negative 1/x-4
2007-06-13 00:50:51 · answer #3 · answered by KChoy 1 · 0⤊ 1⤋
x+4/x-4 is to be divided by x^2-16/4-x
=(x+4/x-4)/(x^2-16/4-x)
=[(x^2+4-4x)/x]/(x^2-4-x)
=(x^2+4-4x)/x(x^2-4-x)
=(x-2)^2/x(x^2-4-x)
2007-06-13 00:50:08 · answer #4 · answered by Jain 4 · 0⤊ 1⤋