Your first step is to expand out the right hand side.
3x^2 = 2x + 2
Now, bring everything to the left hand side, resulting in a right hand side equal to 0.
3x^2 - 2x - 2 = 0
Plug these values into the quadratic formula.
x = [2 +/- sqrt(4 - 4(3)(-2)) ]/6
x = [2 +/- sqrt(30)]/6
2006-12-06 14:02:00
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answer #1
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answered by Puggy 7
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First, lets factor the right side of the equation:
3x^2=2x+2
Now move the right side of the equation to the left:
3x^2-2x -2=0
Now you can factor it using either the quadratic equation where A is 3, B is -2, and C is -2
2006-12-06 22:01:22
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answer #2
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answered by jerryst316 2
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distribute the 2 to the X and the 1 on the right side, then shift them over to get 3X^2 - 2X - 2
2006-12-06 22:00:58
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answer #3
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answered by Matt M 2
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arrange the equation into its general form
ax^2 + bx + c = 0
by subtracting 2x+2 from both sides
then use the quadratic equation
and find solution: x = [1 +/- sqrt(7)]/3
2006-12-06 22:02:30
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answer #4
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answered by Anonymous
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multiply the 2 to(x+1) then u get 3x^2=2x+1 then subtract the 2 from both sides -2x -2x which leaves u x^2=1 then square root x to get rid of ^2 which leaves u x=square root 1
2006-12-06 22:04:26
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answer #5
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answered by cristiano_hanna 1
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if the "^2" is to the second power
than
3x^2=2(x+1)
3x^2=2x+2
-2x -2x
x^2=2
square root x^2= square root of 1
x= square root of 1
2006-12-06 22:07:21
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answer #6
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answered by j_papa123 2
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3x^2 = 2(x+1)
3x^2 = 2x + 2
3x^2 - 2x - 2 = 0
Compare the above equation to:
ax^2+bx+c=0
where
a = 3
b = -2
c = -2
using Quadratic Formula
..............________
......-b 屉b^2 - 4ac
x = ------------------------
...............2a
Substitute the values of a, b and c into the formula above and you'll get your value for x.
2006-12-06 22:23:35
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answer #7
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answered by tps_strike 2
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3X^2=2(X+1)
3X^2 = 2x+2
3X^2 - 2x - 2
2006-12-06 22:02:49
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answer #8
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answered by jamaica 5
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Maybe if you would pay attention in class you would know how to solve this problem
2006-12-06 22:00:39
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answer #9
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answered by night worker 2
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