3x^2-2x+15=0

Simple and best practice solution for 3x^2-2x+15=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^2-2x+15=0 equation:


Simplifying
3x2 + -2x + 15 = 0

Reorder the terms:
15 + -2x + 3x2 = 0

Solving
15 + -2x + 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'.
5 + -0.6666666667x + x2 = 0

Move the constant term to the right:

Add '-5' to each side of the equation.
5 + -0.6666666667x + -5 + x2 = 0 + -5

Reorder the terms:
5 + -5 + -0.6666666667x + x2 = 0 + -5

Combine like terms: 5 + -5 = 0
0 + -0.6666666667x + x2 = 0 + -5
-0.6666666667x + x2 = 0 + -5

Combine like terms: 0 + -5 = -5
-0.6666666667x + x2 = -5

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 = -5 + 0.1111111112

Reorder the terms:
0.1111111112 + -0.6666666667x + x2 = -5 + 0.1111111112

Combine like terms: -5 + 0.1111111112 = -4.8888888888
0.1111111112 + -0.6666666667x + x2 = -4.8888888888

Factor a perfect square on the left side:
(x + -0.3333333334)(x + -0.3333333334) = -4.8888888888

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| 6-9x=46-37x | | 7x^2-59x+24=0 | | 6x^2-23x+20=0 | | 5x+28x=-32 | | 5x^2+21x+4=0 | | 2x^2-11x=-15 | | 4x^2-20x=-25 | | 5x+7x=12 | | 4x^2-22x=-10 | | 223x=90 | | 25x^2-120x=-144 | | 190-9z=100 | | 25x^2-120a=-144 | | x^2-x=67 | | x^3+x=145 | | 3x-4=11-44 | | 3x+32=10x-38 | | y=12x+5 | | x+(x*0.16)=100 | | 8x+1=41 | | 6x-4=41-3x | | 7x-4=4x+2 | | 5s-4=16 | | 5(3x+7)=125 | | 12x^2+36x=-27 | | 4x^2+16x=-8 | | 5x^2+12x=32 | | 5x^2+12x-32=0 | | 5x-2=14x-29 | | 2h+9=5 | | 7x^2-8x=12 | | x^2+2x=63 |

Equations solver categories