1x^2+18.5x-36=0

Simple and best practice solution for 1x^2+18.5x-36=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 1x^2+18.5x-36=0 equation:


Simplifying
1x2 + 18.5x + -36 = 0

Reorder the terms:
-36 + 18.5x + 1x2 = 0

Solving
-36 + 18.5x + 1x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '36' to each side of the equation.
-36 + 18.5x + 36 + x2 = 0 + 36

Reorder the terms:
-36 + 36 + 18.5x + x2 = 0 + 36

Combine like terms: -36 + 36 = 0
0 + 18.5x + x2 = 0 + 36
18.5x + x2 = 0 + 36

Combine like terms: 0 + 36 = 36
18.5x + x2 = 36

The x term is 18.5x.  Take half its coefficient (9.25).
Square it (85.5625) and add it to both sides.

Add '85.5625' to each side of the equation.
18.5x + 85.5625 + x2 = 36 + 85.5625

Reorder the terms:
85.5625 + 18.5x + x2 = 36 + 85.5625

Combine like terms: 36 + 85.5625 = 121.5625
85.5625 + 18.5x + x2 = 121.5625

Factor a perfect square on the left side:
(x + 9.25)(x + 9.25) = 121.5625

Calculate the square root of the right side: 11.025538536

Break this problem into two subproblems by setting 
(x + 9.25) equal to 11.025538536 and -11.025538536.

Subproblem 1

x + 9.25 = 11.025538536 Simplifying x + 9.25 = 11.025538536 Reorder the terms: 9.25 + x = 11.025538536 Solving 9.25 + x = 11.025538536 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-9.25' to each side of the equation. 9.25 + -9.25 + x = 11.025538536 + -9.25 Combine like terms: 9.25 + -9.25 = 0.00 0.00 + x = 11.025538536 + -9.25 x = 11.025538536 + -9.25 Combine like terms: 11.025538536 + -9.25 = 1.775538536 x = 1.775538536 Simplifying x = 1.775538536

Subproblem 2

x + 9.25 = -11.025538536 Simplifying x + 9.25 = -11.025538536 Reorder the terms: 9.25 + x = -11.025538536 Solving 9.25 + x = -11.025538536 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-9.25' to each side of the equation. 9.25 + -9.25 + x = -11.025538536 + -9.25 Combine like terms: 9.25 + -9.25 = 0.00 0.00 + x = -11.025538536 + -9.25 x = -11.025538536 + -9.25 Combine like terms: -11.025538536 + -9.25 = -20.275538536 x = -20.275538536 Simplifying x = -20.275538536

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.775538536, -20.275538536}

See similar equations:

| 9.4z+0.6=0.3z+14.5 | | 5.28+7.1x=-0.4(1+2x)-6.3x | | 3600=50.26x | | X+3-7-X=13 | | 4+7X=8+5X+X | | 2u^2-7v+14u-uv= | | 3c+7d=162 | | 6e^3x-3=24 | | 14+3k=27-10k | | -2a-8+6a=36 | | (3/2)/(1/2)=0 | | 6+8x=7x+4 | | x(3)-6=x(15)+18 | | (3/2)/(1/2) | | 16=x^4-2x^3+8x | | 5+.142857143x=7 | | 175m-125m+47500=50250-200m | | 3x-18+6=5x-4 | | 3=-16t^2+vot+ho | | X+(X*.15)=100 | | .74=ln(x) | | 8m^2+20=12 | | X(3x-1)-4x(x+1)= | | 5(u+3)=70 | | 2n+4n-12=0 | | 1+1+1+1+1=5 | | 4(6x+5)+6(2x+7)= | | 200m-125m+53075=55825-200m | | (x^2-300)^1/2 | | (4x+2)-(x-7)= | | x^2+7=x^2-8x | | 3/m-5/(4m) |

Equations solver categories