-12x ^2 + 6x + 6 = 0
[divide by -6] 2x^2 - x - 1 = 0
(2x + 1)(x - 1) = 0
x = -0.5 or 1
2007-06-13 06:15:20
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answer #1
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answered by Anonymous
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-12x ^2 + 6x + 6 = 0
This is of the form ax^2 + bx + c = 0 here a=-12, b=6 & c=6 and the solution of the QUADRATIC equation is given by
x ={ -b +/- sqrt(b^2 - 4ac) } / 2a
==> x ={ -6 +/- sqrt(36+228) } / -24 = (-6 +/- 18) / -24
==> x = (-6+18) / -24 or x = (-6-18) / -24
==> x = -1/2 or 1
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2007-06-13 13:21:23
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answer #2
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answered by Anonymous
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first factor out the 6. then u get : 6(-2x^2+1x+1). Then use the quadratic formula
(x= -b+ or - the square root of (b^2-4ac)divided by 2a). but this can be factored. so it factors into
6(-2x-1)(x-1)=0. That leaves u with either x=-1/2 or x=1. Hope this cleared things up!
2007-06-13 13:27:12
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answer #3
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answered by Anonymous
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-12x ^2 + 6x + 6 = 0
6(-2x+1+1)=0
6(-2x-1)(x-1)=0
true when -2x-1=0 (x=-1/2)
and when x-1=0 (x=1)
ans x=-1/2, 1
2007-06-13 13:18:35
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answer #4
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answered by Dan 2
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12x² - 6x - 6 = 0
2x² - x - 1 = 0
(2x + 1).(x - 1) = 0
x = - 1/2 , x = 1
2007-06-13 13:15:28
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answer #5
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answered by Como 7
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x=((-)b+/-squareroot(b^2-4ac))/2a
you need to get your a, b, and c, plug in the numbers and there you go. it's pretty easy.
2007-06-13 13:23:13
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answer #6
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answered by Anonymous
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