3x^2-12x+13=0

Simple and best practice solution for 3x^2-12x+13=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^2-12x+13=0 equation:


Simplifying
3x2 + -12x + 13 = 0

Reorder the terms:
13 + -12x + 3x2 = 0

Solving
13 + -12x + 3x2 = 0

Solving for variable 'x'.

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

Divide each side by '3'.
4.333333333 + -4x + x2 = 0

Move the constant term to the right:

Add '-4.333333333' to each side of the equation.
4.333333333 + -4x + -4.333333333 + x2 = 0 + -4.333333333

Reorder the terms:
4.333333333 + -4.333333333 + -4x + x2 = 0 + -4.333333333

Combine like terms: 4.333333333 + -4.333333333 = 0.000000000
0.000000000 + -4x + x2 = 0 + -4.333333333
-4x + x2 = 0 + -4.333333333

Combine like terms: 0 + -4.333333333 = -4.333333333
-4x + x2 = -4.333333333

The x term is -4x.  Take half its coefficient (-2).
Square it (4) and add it to both sides.

Add '4' to each side of the equation.
-4x + 4 + x2 = -4.333333333 + 4

Reorder the terms:
4 + -4x + x2 = -4.333333333 + 4

Combine like terms: -4.333333333 + 4 = -0.333333333
4 + -4x + x2 = -0.333333333

Factor a perfect square on the left side:
(x + -2)(x + -2) = -0.333333333

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| x^2+y^2-8x-4y+17=0 | | -a-a^2-4a+18=0 | | -a-a^2-4a-18=0 | | -.3333333333(x+3)=-2 | | .5(x+1)=-7 | | a^2+5a-18=0 | | -3x+4y=18 | | .33333333333(x+3)=14 | | 24x-3y=30 | | 3x-4y=29 | | y-8+y-30=-210 | | 342x=3078 | | 26b*34=12+3.14 | | 34z+45=19-21 | | 12x-23=56 | | (7x+-11)(4x+1)= | | exp(x)=4 | | x^3+2x^2-4x+3=0 | | (x-3)(x-2)(x-1)=0 | | 90=2*3.1415926536r | | (7x-11)(4x+1)= | | 90=2*3.14r | | 6x^3+x^2-54=0 | | 12(t+6)+8=4(2t-1)+2t | | 3(3x-8)=48 | | 81-r^2=0 | | 25x^2-30x+36=0 | | Y^3-25y=0 | | k^2-100=0 | | 2x-1=4-3 | | 9x^2+33x+28=0 | | X^6-8x^3+15=0 |

Equations solver categories