81x^2+20x+125=0

Simple and best practice solution for 81x^2+20x+125=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 81x^2+20x+125=0 equation:


Simplifying
81x2 + 20x + 125 = 0

Reorder the terms:
125 + 20x + 81x2 = 0

Solving
125 + 20x + 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'.
1.543209877 + 0.2469135802x + x2 = 0

Move the constant term to the right:

Add '-1.543209877' to each side of the equation.
1.543209877 + 0.2469135802x + -1.543209877 + x2 = 0 + -1.543209877

Reorder the terms:
1.543209877 + -1.543209877 + 0.2469135802x + x2 = 0 + -1.543209877

Combine like terms: 1.543209877 + -1.543209877 = 0.000000000
0.000000000 + 0.2469135802x + x2 = 0 + -1.543209877
0.2469135802x + x2 = 0 + -1.543209877

Combine like terms: 0 + -1.543209877 = -1.543209877
0.2469135802x + x2 = -1.543209877

The x term is 0.2469135802x.  Take half its coefficient (0.1234567901).
Square it (0.01524157902) and add it to both sides.

Add '0.01524157902' to each side of the equation.
0.2469135802x + 0.01524157902 + x2 = -1.543209877 + 0.01524157902

Reorder the terms:
0.01524157902 + 0.2469135802x + x2 = -1.543209877 + 0.01524157902

Combine like terms: -1.543209877 + 0.01524157902 = -1.52796829798
0.01524157902 + 0.2469135802x + x2 = -1.52796829798

Factor a perfect square on the left side:
(x + 0.1234567901)(x + 0.1234567901) = -1.52796829798

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| 8*8+3= | | 16-x=16 | | -5n-2n=30+3 | | 4(a-3)=-3(2+4a) | | 3y+8=4y-12 | | 5(n-3)+5(n-5)=40 | | 4x-4y=24findy | | 2h+6=66 | | 6(x-5)=5(x+7) | | -w=-w+5 | | 1.2+0.5+1.3= | | 8x+3+9x+6=145 | | x+6/2+5=15 | | -9+m=-(-2m+4) | | 7(-3+x)=56 | | x+3x+5x-4x= | | -40=-14+n | | c+10=13 | | 6-6x=x+5(-x-2) | | 5x+2=8x-31 | | -(x-4)+5=4x+1-5x | | c/8-12=48 | | j/7-9=5/6 | | 3x+8=6x+15 | | 125+8y^3= | | 2q+1=37-4q | | 2x+3.5=4.7 | | 50+15t+t^2=0 | | 3.4=5.6+Y/1.2 | | 12v^2-25-7= | | 3n^2-14n-24=0 | | 7.2a+13=85 |

Equations solver categories