x-1/x-2+x-3/x-4=10/3
x - 1/x - 2 + x - 3/x - 4 = 10/3
multiply both sides by 3x,
3x² - 3 - 6x + 3x² - 9 - 12x = 10x
let 6x² - 28x - 12 = 0
2(3x² - 14x - 6) = 0
let a = 3, b = -14, c = -6
use the formula = [ -b +/- square root (b² - 4ac) ] / 2a
= [ -(-14) +/- square root (-14² - 4(3)(-6) ] / 2(3)
= [ 14 +/- square root (196+72) ] / 6
= 14 +/- √268/6
= 14/6 +/- √268/6
= 7/3 +/- √268/6
2007-06-18 21:28:52
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answer #1
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answered by jurassicko 4
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X=5
2007-06-18 19:39:35
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answer #2
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answered by uma m 1
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3^ (x+2) + 2 = 12 - 3^(x+4) or 3^(x+2) + 3^(x+4) = 10 or 3^(x+2) + 3^(x+2) 3^2 = 10 or 3^(x+2)[ a million + 3^2] = 10 or 3^(x+2)* 10 = 10 or 3^( x+2) =a million or 3^(x+2) = 3^0 [ IF A^n = A^ m THEN n = m ] so x+2 = 0 or x= - 2 answer
2016-10-18 00:03:47
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answer #3
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answered by ? 4
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I think you meant
(x - 1) / (x - 2) + (x - 3) / (x - 4) = 10/3 and we need to solve it for x.
3[(x - 1) ( x - 4) + (x - 3) (x - 2)] = 10 (x - 2) (x - 4)
3[ x^2 - 5x + 4 + x^2 - 5x + 6] = 10 (x^2 - 6x +8)
3(2x^2 - 10x + 10) = 10x^2 - 60x + 80
6x^2 - 30x + 30 = 10x^2 - 60x + 80
Subtracting the LHS from the RHS
4x^2 - 30x + 50 = 0
2x^2 - 15x + 25 = 0
(2x - 5) (x - 5) = 0
So 2x - 5 = 0 and x -5 = 0
x = 5/2 and 5
2007-06-18 19:16:10
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answer #4
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answered by Swamy 7
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x=5
2007-06-18 19:09:42
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answer #5
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answered by Anonymous
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x-1/x-2 + x-3/x-4 = 10/3
Multiply both sides by the LCM which is
3(x-2)(x-4)
3(x-2)(x-4)((x-1/x-2 + x-3/x-4 = 10/3)
3(x-4)(x-1) + 3(x-2)(x-3) = 10(x-2)(x-4)
(3x-12)(x-1) + (3x-6)(x-3) = (10x -20)(x-4)
3x^2 -3x -12x + 12 + 3x^2 - 9x -6x + 18 = 10x^2 -40x -20x + 80
6x^2 -30x + 30 = 10x^2 - 60x + 80
6x^2 -30x + 30 - 10x^2 + 60x -80 = 10x^2 -60x + 80 -10x^2 + 60x -80
-4x^2 +30x -50 = 0
Multiply the equation by -1
(-1)(-4x^2 + 30x - 50 = 0)
4x^2 -30x + 50 = 0
Factor
(4x - 10) (x - 5) = 0
To make this equation true,
4x - 10 = 0 or x - 5 = 0
If 4x - 10 = 0
4x = 10
x = 10/4
x = 5/2
If x - 5 = 0
x = 5
2007-06-18 19:31:59
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answer #6
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answered by detektibgapo 5
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add (x-1)=t
=>t/(t-1) + (t-2)/(t-3)=10/3
=>t(t-3) + (t-2)(t-1)=10/3(t-1)(t-3)
=> now it's easy to solve
2007-06-18 20:45:10
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answer #7
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answered by thai hoa 1
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x + x -x/2 - 3/4x = 10/3+6
-x/4 = 28/3
x = - 114 / 3
2007-06-18 19:07:05
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answer #8
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answered by CPUcate 6
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After combining like terms and reducing you get:
x - 2/x =14x/3
multiplying all by x will convert this to a quadratic equation:
x^2 - 4.67x -2 =0
using the quadratic equation you get (approximately):
x=5.07 AND x=-0.39
2007-06-18 19:14:47
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answer #9
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answered by answer 2
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use parathesis next time....it's too confusing, the equation could be set up so many ways. if it's x-1 use (x-1).
2007-06-18 19:02:00
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answer #10
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answered by Anonymous
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