3x(3x-2)+7=0

Simple and best practice solution for 3x(3x-2)+7=0 equation. Check how easy it is, and learn it for the future. Our solution is simple, and easy to understand, so don`t hesitate to use it as a solution of your homework.

If it's not what You are looking for type in the equation solver your own equation and let us solve it.

Solution for 3x(3x-2)+7=0 equation:


Simplifying
3x(3x + -2) + 7 = 0

Reorder the terms:
3x(-2 + 3x) + 7 = 0
(-2 * 3x + 3x * 3x) + 7 = 0
(-6x + 9x2) + 7 = 0

Reorder the terms:
7 + -6x + 9x2 = 0

Solving
7 + -6x + 9x2 = 0

Solving for variable 'x'.

Begin completing the square.  Divide all terms by
9 the coefficient of the squared term: 

Divide each side by '9'.
0.7777777778 + -0.6666666667x + x2 = 0

Move the constant term to the right:

Add '-0.7777777778' to each side of the equation.
0.7777777778 + -0.6666666667x + -0.7777777778 + x2 = 0 + -0.7777777778

Reorder the terms:
0.7777777778 + -0.7777777778 + -0.6666666667x + x2 = 0 + -0.7777777778

Combine like terms: 0.7777777778 + -0.7777777778 = 0.0000000000
0.0000000000 + -0.6666666667x + x2 = 0 + -0.7777777778
-0.6666666667x + x2 = 0 + -0.7777777778

Combine like terms: 0 + -0.7777777778 = -0.7777777778
-0.6666666667x + x2 = -0.7777777778

The x term is -0.6666666667x.  Take half its coefficient (-0.3333333334).
Square it (0.1111111112) and add it to both sides.

Add '0.1111111112' to each side of the equation.
-0.6666666667x + 0.1111111112 + x2 = -0.7777777778 + 0.1111111112

Reorder the terms:
0.1111111112 + -0.6666666667x + x2 = -0.7777777778 + 0.1111111112

Combine like terms: -0.7777777778 + 0.1111111112 = -0.6666666666
0.1111111112 + -0.6666666667x + x2 = -0.6666666666

Factor a perfect square on the left side:
(x + -0.3333333334)(x + -0.3333333334) = -0.6666666666

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| 0.6x+1.2=2.4 | | 5x^2+0.2x=0 | | (x+8)(x-2)=119 | | (x+8)(x+3)=119 | | (x+5+3)(y-3)=119 | | y=(17-4y)-2 | | (x+8)(x-3)=119 | | 16x^2-2x+50= | | 3x+y=86 | | 92-3x=15x+24 | | 9y+8=13x-1 | | 6-1*0+2/2 | | x-4-4x=6x+6+8x | | 30=8+5t | | x+9=45+67 | | X^2-69x-70=0 | | 7/12-1/3b=5/6+1/4b | | -5/6x-7/8 | | 63/164+40/123 | | 5y-y=-9+y | | -4x-8=7x+14 | | 14=-5x+19 | | 7p-10p=12 | | 7p-10=12 | | -6p+4+7p=9 | | c-6=2-2 | | 7/8t+5/6t=3/4 | | -3(y+2)= | | 2(-4y^4)= | | 5+8+4ab= | | -a-8a-a= | | -5x(0)+(-7)= |

Equations solver categories