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please help this, seems to confuse me,

3X^2=2(X+1)

Help is really appreciated, along with the steps. thanks!!!

2006-12-06 13:57:48 · 9 answers · asked by BLUEEEE 1 in Science & Mathematics Mathematics

9 answers

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 · answer #1 · answered by Puggy 7 · 1 0

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 · answer #2 · answered by jerryst316 2 · 0 0

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 · answer #3 · answered by Matt M 2 · 0 0

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 · answer #4 · answered by Anonymous · 0 0

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 · answer #5 · answered by cristiano_hanna 1 · 0 2

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 · answer #6 · answered by j_papa123 2 · 0 1

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 ±√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 · answer #7 · answered by tps_strike 2 · 0 0

3X^2=2(X+1)
3X^2 = 2x+2
3X^2 - 2x - 2

2006-12-06 22:02:49 · answer #8 · answered by jamaica 5 · 0 0

Maybe if you would pay attention in class you would know how to solve this problem

2006-12-06 22:00:39 · answer #9 · answered by night worker 2 · 0 1

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