9x^2+-2x+4=0

Simple and best practice solution for 9x^2+-2x+4=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 9x^2+-2x+4=0 equation:


Simplifying
9x2 + -2x + 4 = 0

Reorder the terms:
4 + -2x + 9x2 = 0

Solving
4 + -2x + 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'.
0.4444444444 + -0.2222222222x + x2 = 0

Move the constant term to the right:

Add '-0.4444444444' to each side of the equation.
0.4444444444 + -0.2222222222x + -0.4444444444 + x2 = 0 + -0.4444444444

Reorder the terms:
0.4444444444 + -0.4444444444 + -0.2222222222x + x2 = 0 + -0.4444444444

Combine like terms: 0.4444444444 + -0.4444444444 = 0.0000000000
0.0000000000 + -0.2222222222x + x2 = 0 + -0.4444444444
-0.2222222222x + x2 = 0 + -0.4444444444

Combine like terms: 0 + -0.4444444444 = -0.4444444444
-0.2222222222x + x2 = -0.4444444444

The x term is -0.2222222222x.  Take half its coefficient (-0.1111111111).
Square it (0.01234567901) and add it to both sides.

Add '0.01234567901' to each side of the equation.
-0.2222222222x + 0.01234567901 + x2 = -0.4444444444 + 0.01234567901

Reorder the terms:
0.01234567901 + -0.2222222222x + x2 = -0.4444444444 + 0.01234567901

Combine like terms: -0.4444444444 + 0.01234567901 = -0.43209876539
0.01234567901 + -0.2222222222x + x2 = -0.43209876539

Factor a perfect square on the left side:
(x + -0.1111111111)(x + -0.1111111111) = -0.43209876539

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| -3d+7+d=-(2d-3)+4 | | (-4/7)+4=x | | -6*(-4/7)=x | | 14=9x-9 | | 5/x=50 | | -3x-7/2=5/2 | | -(6y+4)-(-5y+7)=3 | | 15x-6=14x-10 | | 5x=-17 | | 6x=4500 | | -9/5=-4/3x-5/2 | | -80z-0.1=-90z+1.5 | | -6y-2=-5y-6 | | 14+6=-4(5x-5) | | 10x-5=50x+11 | | x+23=5x+35 | | -7+1.7+2.1=0 | | 7500-20x=30y | | (1350*X)=1800 | | x/8-1=-7 | | 2/8y-3=-1 | | 5x+18/8=x/4 | | 1=0.1x-0.7x-47 | | x=x+0 | | 13a+13b= | | p+0.09p=185.3 | | 2x5/8 | | 24-x=8 | | a(x-4)+5(x-4)= | | ln(6x-5)=0 | | a/6-1/6=-6 | | -7(5x+7)-9= |

Equations solver categories