3x^2-8x+9=0

Simple and best practice solution for 3x^2-8x+9=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^2-8x+9=0 equation:


Simplifying
3x2 + -8x + 9 = 0

Reorder the terms:
9 + -8x + 3x2 = 0

Solving
9 + -8x + 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'.
3 + -2.666666667x + x2 = 0

Move the constant term to the right:

Add '-3' to each side of the equation.
3 + -2.666666667x + -3 + x2 = 0 + -3

Reorder the terms:
3 + -3 + -2.666666667x + x2 = 0 + -3

Combine like terms: 3 + -3 = 0
0 + -2.666666667x + x2 = 0 + -3
-2.666666667x + x2 = 0 + -3

Combine like terms: 0 + -3 = -3
-2.666666667x + x2 = -3

The x term is -2.666666667x.  Take half its coefficient (-1.333333334).
Square it (1.777777780) and add it to both sides.

Add '1.777777780' to each side of the equation.
-2.666666667x + 1.777777780 + x2 = -3 + 1.777777780

Reorder the terms:
1.777777780 + -2.666666667x + x2 = -3 + 1.777777780

Combine like terms: -3 + 1.777777780 = -1.22222222
1.777777780 + -2.666666667x + x2 = -1.22222222

Factor a perfect square on the left side:
(x + -1.333333334)(x + -1.333333334) = -1.22222222

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| 24+11y+y^2=0 | | 8-4x+5x=8 | | -3x-8+x=-22 | | -16=8-4x | | -6x+1=-41 | | 3x-10=-13 | | k^2-25=0 | | 16x^4+81=0 | | -4x+2=-2 | | 10b^2-9b+3=0 | | -2x+3x=-3 | | x^2=-6x+16 | | -(8y+2)-(7y-3)=1 | | 4n^2=-48+28n | | p^4+2p^2-15=0 | | 360=100-87-y | | 180=100-87-y | | 360=100+87+y | | k^2+5k+3=0 | | k-(-25)=0 | | 180=100-87+y | | k^2+5k=3 | | 180=100+87 | | z=3+2i | | k-25=0 | | -3x-7x+5=-25 | | a+2/2=3 | | 5=25+7 | | -2x+6(2x+16)=36 | | 180=81-62 | | 180=81+62 | | 180=62 |

Equations solver categories