2x^2+18.3x-226.1=0

Simple and best practice solution for 2x^2+18.3x-226.1=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 2x^2+18.3x-226.1=0 equation:


Simplifying
2x2 + 18.3x + -226.1 = 0

Reorder the terms:
-226.1 + 18.3x + 2x2 = 0

Solving
-226.1 + 18.3x + 2x2 = 0

Solving for variable 'x'.

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

Divide each side by '2'.
-113.05 + 9.15x + x2 = 0

Move the constant term to the right:

Add '113.05' to each side of the equation.
-113.05 + 9.15x + 113.05 + x2 = 0 + 113.05

Reorder the terms:
-113.05 + 113.05 + 9.15x + x2 = 0 + 113.05

Combine like terms: -113.05 + 113.05 = 0.00
0.00 + 9.15x + x2 = 0 + 113.05
9.15x + x2 = 0 + 113.05

Combine like terms: 0 + 113.05 = 113.05
9.15x + x2 = 113.05

The x term is 9.15x.  Take half its coefficient (4.575).
Square it (20.930625) and add it to both sides.

Add '20.930625' to each side of the equation.
9.15x + 20.930625 + x2 = 113.05 + 20.930625

Reorder the terms:
20.930625 + 9.15x + x2 = 113.05 + 20.930625

Combine like terms: 113.05 + 20.930625 = 133.980625
20.930625 + 9.15x + x2 = 133.980625

Factor a perfect square on the left side:
(x + 4.575)(x + 4.575) = 133.980625

Calculate the square root of the right side: 11.575

Break this problem into two subproblems by setting 
(x + 4.575) equal to 11.575 and -11.575.

Subproblem 1

x + 4.575 = 11.575 Simplifying x + 4.575 = 11.575 Reorder the terms: 4.575 + x = 11.575 Solving 4.575 + x = 11.575 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-4.575' to each side of the equation. 4.575 + -4.575 + x = 11.575 + -4.575 Combine like terms: 4.575 + -4.575 = 0.000 0.000 + x = 11.575 + -4.575 x = 11.575 + -4.575 Combine like terms: 11.575 + -4.575 = 7 x = 7 Simplifying x = 7

Subproblem 2

x + 4.575 = -11.575 Simplifying x + 4.575 = -11.575 Reorder the terms: 4.575 + x = -11.575 Solving 4.575 + x = -11.575 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-4.575' to each side of the equation. 4.575 + -4.575 + x = -11.575 + -4.575 Combine like terms: 4.575 + -4.575 = 0.000 0.000 + x = -11.575 + -4.575 x = -11.575 + -4.575 Combine like terms: -11.575 + -4.575 = -16.15 x = -16.15 Simplifying x = -16.15

Solution

The solution to the problem is based on the solutions from the subproblems. x = {7, -16.15}

See similar equations:

| 3t^2-5t-2=0 | | 40x^2-13x=0 | | 5.6q-4.9-5.4q=-0.8q-1.5 | | (3+2x+7x^2+2x^3)+(4-2x+7x^2-2x^3)= | | 8=5r+18 | | 2x+4=6y-24 | | 104=5+3(5x-7) | | 9x^5-4x^3+9x^2-4=0 | | 2x/5+5x=4/3 | | 8=5r | | x=6x+6 | | 7x-4=-2x-4+9x | | 14/5/7/25 | | 2X+3Y=148 | | (x-11)(x+4)=0 | | 30x(-w+6)+(-5w+4)=-(5w+6)+(-8+3w) | | (-16/9)=-8y | | (4x^2)/(0.0015-X)^2 | | (-7w/6)=35 | | m-31=-18 | | G^2=-6-5g | | 15x+y=20 | | 92*37/46*1/4 | | x+5y=200 | | 42=(-6/7)x | | 4y-19=-3y+2 | | 6m+2.3=-9.6 | | 3(r-4)= | | 8x/-5 | | 8x=16/5 | | 48(x)+48(18/12)=58(2x/4) | | 2x^2-16x+21=0 |

Equations solver categories