x^2+3x-116=0

Simple and best practice solution for x^2+3x-116=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 x^2+3x-116=0 equation:


Simplifying
x2 + 3x + -116 = 0

Reorder the terms:
-116 + 3x + x2 = 0

Solving
-116 + 3x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '116' to each side of the equation.
-116 + 3x + 116 + x2 = 0 + 116

Reorder the terms:
-116 + 116 + 3x + x2 = 0 + 116

Combine like terms: -116 + 116 = 0
0 + 3x + x2 = 0 + 116
3x + x2 = 0 + 116

Combine like terms: 0 + 116 = 116
3x + x2 = 116

The x term is 3x.  Take half its coefficient (1.5).
Square it (2.25) and add it to both sides.

Add '2.25' to each side of the equation.
3x + 2.25 + x2 = 116 + 2.25

Reorder the terms:
2.25 + 3x + x2 = 116 + 2.25

Combine like terms: 116 + 2.25 = 118.25
2.25 + 3x + x2 = 118.25

Factor a perfect square on the left side:
(x + 1.5)(x + 1.5) = 118.25

Calculate the square root of the right side: 10.874281585

Break this problem into two subproblems by setting 
(x + 1.5) equal to 10.874281585 and -10.874281585.

Subproblem 1

x + 1.5 = 10.874281585 Simplifying x + 1.5 = 10.874281585 Reorder the terms: 1.5 + x = 10.874281585 Solving 1.5 + x = 10.874281585 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.5' to each side of the equation. 1.5 + -1.5 + x = 10.874281585 + -1.5 Combine like terms: 1.5 + -1.5 = 0.0 0.0 + x = 10.874281585 + -1.5 x = 10.874281585 + -1.5 Combine like terms: 10.874281585 + -1.5 = 9.374281585 x = 9.374281585 Simplifying x = 9.374281585

Subproblem 2

x + 1.5 = -10.874281585 Simplifying x + 1.5 = -10.874281585 Reorder the terms: 1.5 + x = -10.874281585 Solving 1.5 + x = -10.874281585 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.5' to each side of the equation. 1.5 + -1.5 + x = -10.874281585 + -1.5 Combine like terms: 1.5 + -1.5 = 0.0 0.0 + x = -10.874281585 + -1.5 x = -10.874281585 + -1.5 Combine like terms: -10.874281585 + -1.5 = -12.374281585 x = -12.374281585 Simplifying x = -12.374281585

Solution

The solution to the problem is based on the solutions from the subproblems. x = {9.374281585, -12.374281585}

See similar equations:

| 66=12+9m | | 4y-48=-3y-28 | | 25y^2+104y+25=0 | | 4-x+2x=44 | | 4y-4=-3y-28 | | 7z-4=5z+20 | | 44x-(-23)=199 | | 18x-35=12x+26 | | 7=w/19 | | 2=r/18 | | 2x+4(38-x)= | | A=x+g+y | | 5x+9-6x= | | x-90=-9x+10 | | -5n-3(7+4n)=-6n-32 | | -4(5x-7)=3x+-16 | | X/3-2=x/9x | | 28-9x=4x-11 | | 2e^8x-5=19 | | -4x-8=-5-2 | | 14/7*2-6 | | 20x^2=5000 | | 7.3a-2.1=4.6a-6.5 | | 5y^2-10y-23=-7 | | (7a+2b)-4a= | | 2x+5+3x-15+4x+10=0 | | (2x^2y-34z)/(xyz) | | ln(9/4x^4y) | | 2x+5+3x-15+4x+10=1 | | 5x+5x=75 | | -1000=(x-18000)*8 | | 148-x=220 |

Equations solver categories