81x^2-18x+4=

Simple and best practice solution for 81x^2-18x+4= 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 81x^2-18x+4= equation:


Simplifying
81x2 + -18x + 4 = 0

Reorder the terms:
4 + -18x + 81x2 = 0

Solving
4 + -18x + 81x2 = 0

Solving for variable 'x'.

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

Divide each side by '81'.
0.04938271605 + -0.2222222222x + x2 = 0

Move the constant term to the right:

Add '-0.04938271605' to each side of the equation.
0.04938271605 + -0.2222222222x + -0.04938271605 + x2 = 0 + -0.04938271605

Reorder the terms:
0.04938271605 + -0.04938271605 + -0.2222222222x + x2 = 0 + -0.04938271605

Combine like terms: 0.04938271605 + -0.04938271605 = 0.00000000000
0.00000000000 + -0.2222222222x + x2 = 0 + -0.04938271605
-0.2222222222x + x2 = 0 + -0.04938271605

Combine like terms: 0 + -0.04938271605 = -0.04938271605
-0.2222222222x + x2 = -0.04938271605

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 = -0.04938271605 + 0.01234567901

Reorder the terms:
0.01234567901 + -0.2222222222x + x2 = -0.04938271605 + 0.01234567901

Combine like terms: -0.04938271605 + 0.01234567901 = -0.03703703704
0.01234567901 + -0.2222222222x + x2 = -0.03703703704

Factor a perfect square on the left side:
(x + -0.1111111111)(x + -0.1111111111) = -0.03703703704

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| 3x-0.67x=-3.38 | | 2a^2+12a-4=0 | | 8n-29=27 | | (-5x^2+8)+(2x^2-25x-9)= | | 6x-3=x+17 | | -3x=-30+2x | | 2x+5=3 | | (n-10)*10=30 | | 17+2(4)=21+2(4) | | 3x-8=43 | | 5a^5-1080a^2= | | p=8s | | p=8a | | V^6-v^3-30= | | -30a=-32a-8 | | 8x-4(3-2x)=4(2x-3)+4 | | 3-4(0.5)=10(0.5)+10 | | 15-20z=20 | | 4x-109=686 | | (x^2-5x+1)-(x^2-2x-4)= | | 15-20z=35 | | x(2x-1)+2=24 | | 7x+3=6x+8 | | 16=-66.6m | | 5x-18x=-4x | | x^2-16x+64=7 | | y=z-6 | | 132x^2-23x=132 | | 25x^2+20x+4=17 | | 5+5x-3=1x-2-4x | | y=-.5x-2 | | 90x^2-19=90 |

Equations solver categories