Simplfly the following
9-4x -4x-4
------- x ----------
7-3x -4x^2-10x-6
any help will be appreciated...
2007-03-04 21:25:46 · 7 answers · asked by Hmmmmm 3 in Science & Mathematics ➔ Mathematics
1) 9-4x -4x-4
Solution:
rearrange: = -4x-4x+9-4
= -8x+5
2) 7-3x-4x^2-10x-6
Solution:
rearrange = -4x^2-10x-3x+7-6
= -4x^2-13x+1
If you equate it to zero and use quadratic formula, you can extract two values of x.
Quadratic formula is: http://www.unf.edu/~tbratina/mathed/images/quadraticformulaonly.gif
put a= -4
b= -13
and c= 1
you get
x= -3.3252 and
x= 0.0752
Hope this helps
2007-03-04 21:57:48 · answer #1 · answered by Ali 3 · 1⤊ 2⤋
Not sure..
1) 9-4x-4x-4
=9-4=5
=-4x-4x=-8x
so...
5-8x
2) 7-3x-4x^2-10x-6
=7-6=1
=-3x-10x=-13x
so...
-4x^2-13x+1
2007-03-05 05:38:10 · answer #2 · answered by Anonymous · 0⤊ 1⤋
I am reading question as follows:-
(5 - 8x) . (- 4x² - 13x + 1)
= - 20x² - 65 x + 5 + 32 x³ + 104x² - 8x
= 32 x ³ + 84 x² - 73 x + 5
2007-03-05 06:44:05 · answer #3 · answered by Como 7 · 2⤊ 0⤋
(9-4x)/(7-3x) * -4(x+1) / -2(2x^2+5x+3)
= (9-4x)/(7-3x) * 2(x+1) / (2x+3)*(x+1)
=(9-4x)/(7-3x) * 2 / (2x+3)
= 2(9-4x) / [(7-3x)*(2x+3)]
2007-03-05 06:02:20 · answer #4 · answered by Anonymous · 1⤊ 0⤋
1)9-4x-4x-4
9-8x-4
5-8x
2)whatever that is I don't know it.
2007-03-05 06:54:24 · answer #5 · answered by The pimp 1 · 0⤊ 1⤋
do the exponential parts first
then do everything you can that involves multiplication or division,
then do everything you can that involves addition or subtraction.
you only have to simplify this problem, not solve it.
2007-03-05 05:29:51 · answer #6 · answered by Anonymous · 0⤊ 2⤋
What'll your math teacher think when she finds out how you do your homework......
2007-03-05 07:20:16 · answer #7 · answered by SilentShadow 3 · 2⤊ 0⤋