please help
2007-07-07 05:15:32 · 7 answers · asked by Tiana R 1 in Science & Mathematics ➔ Mathematics
(x^2-1x-90)/(x+9)
=(x-10)(x+9)/(x+9)
=(x-10)
2007-07-07 05:22:53 · answer #1 · answered by fofo m 3 · 0⤊ 0⤋
x^2-1x-90 divided by x+9
= (x-10)(x+9)/(x+9) = x-10
2007-07-07 05:22:16 · answer #2 · answered by ironduke8159 7 · 0⤊ 0⤋
x^2-1x-90 /x+9
x^2-90/9 since -x and x cancel out
x^2 -10 since 9 divides -90 to give -10
=x -10
2007-07-07 05:23:28 · answer #3 · answered by Psygnosis 3 · 0⤊ 1⤋
(x - 10).(x + 9) / (x + 9) = x - 10
2007-07-07 05:41:06 · answer #4 · answered by Como 7 · 0⤊ 0⤋
Hi,
Factor the numerator.
x² -x - 90
------------ =
x + 9
(x - 10)(x + 9)
------------------ =
x + 9
Cancel out the x + 9 factor to get x - 10 as your answer.
2007-07-07 05:19:29 · answer #5 · answered by Pi R Squared 7 · 0⤊ 0⤋
x+9)x^2 - x - 90 ( x -10
x^2 +9x
------------
- 10x -90
- 10x -90
-------------
0 0
=======
(x - 10) Ans.
2007-07-07 05:37:48 · answer #6 · answered by Joymash 6 · 0⤊ 0⤋
. . . . .. x - 10
. . . . __ __ __ __ __ __ __
x+9) x^2 - x - 90
....... x^2 +9x. . .
. . . .. --------------
. . . . .. . . ..-10x -90
.. . ... .. . .. -10x -90
. . .. . . .. . ---------------
. . . .. . . . .. . . .. 0
2007-07-07 05:25:33 · answer #7 · answered by Snoopy 3 · 0⤊ 0⤋