Simplify (-7x-14)/(10x+20)
2007-11-26 08:37:43 · 9 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
(-7) (x + 2)
--------------
(10) (x + 2)
- 7
----
10
2007-11-26 09:54:42 · answer #1 · answered by Como 7 · 1⤊ 1⤋
(-7x-14) / (10x+20)
= -7(x+2) / 10(x+2)
= - 7/10
2007-11-26 08:57:23 · answer #2 · answered by bella 1 · 0⤊ 0⤋
( -- 7x - 14) / (10x + 20)
= -- 7(x + 2) / 10(x + 2)
= -- 7/10
2007-11-26 08:42:06 · answer #3 · answered by sv 7 · 0⤊ 0⤋
(-7x-14) is the same as -2(x+2)
(10x+20) is the same as 10(x+2)
so (-7x-14)/(10x+2) = [-2(x+2)]/[10(x+2)]
since (x+2) is in the top (numerator) and bottom (denominator), they cancel..(x+2)/(x+2)=1..right?
now, all that's left is (-2)/(10) = -1/5
2007-11-26 08:49:08 · answer #4 · answered by Jim L 3 · 0⤊ 0⤋
(-7x-14)/(10x+20) =
-7(x +2) /{10(x+2)} = -7/10
2007-11-26 08:41:06 · answer #5 · answered by Any day 6 · 1⤊ 1⤋
(-7x-14)/(10x+20) [add -7x and 10x] [add 20 and -14]
3x / 6
thts as far as u can simplify
(im pretty sur its rght)
2007-11-26 08:45:12 · answer #6 · answered by LEmeg 2 · 0⤊ 0⤋
(-7x-14)/(10x+20)
use FOIL
FIRST
INNER
OUTER
LAST
-7x(10x) = -70x^2
-7x(20) = -140x
-14(10x) = -140x
-14(20) = -280
=
-70x^2 - 280x - 280
2007-11-26 08:43:25 · answer #7 · answered by AHauntingNearU 2 · 0⤊ 1⤋
(-7x-14)/(10x+20)
=(7(-x-2))/(10(x+2))
=(-7(x+2))/(10(x+2))
=-7/10
2007-11-26 08:42:59 · answer #8 · answered by pink 2 · 0⤊ 1⤋
factor out (x+2) from top and bottom and you are left with -7/10 after they cancel.
2007-11-26 08:41:04 · answer #9 · answered by tydvdtalk 3 · 1⤊ 1⤋