x^2+6x-199=0

Simple and best practice solution for x^2+6x-199=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+6x-199=0 equation:


Simplifying
x2 + 6x + -199 = 0

Reorder the terms:
-199 + 6x + x2 = 0

Solving
-199 + 6x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '199' to each side of the equation.
-199 + 6x + 199 + x2 = 0 + 199

Reorder the terms:
-199 + 199 + 6x + x2 = 0 + 199

Combine like terms: -199 + 199 = 0
0 + 6x + x2 = 0 + 199
6x + x2 = 0 + 199

Combine like terms: 0 + 199 = 199
6x + x2 = 199

The x term is 6x.  Take half its coefficient (3).
Square it (9) and add it to both sides.

Add '9' to each side of the equation.
6x + 9 + x2 = 199 + 9

Reorder the terms:
9 + 6x + x2 = 199 + 9

Combine like terms: 199 + 9 = 208
9 + 6x + x2 = 208

Factor a perfect square on the left side:
(x + 3)(x + 3) = 208

Calculate the square root of the right side: 14.422205102

Break this problem into two subproblems by setting 
(x + 3) equal to 14.422205102 and -14.422205102.

Subproblem 1

x + 3 = 14.422205102 Simplifying x + 3 = 14.422205102 Reorder the terms: 3 + x = 14.422205102 Solving 3 + x = 14.422205102 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + x = 14.422205102 + -3 Combine like terms: 3 + -3 = 0 0 + x = 14.422205102 + -3 x = 14.422205102 + -3 Combine like terms: 14.422205102 + -3 = 11.422205102 x = 11.422205102 Simplifying x = 11.422205102

Subproblem 2

x + 3 = -14.422205102 Simplifying x + 3 = -14.422205102 Reorder the terms: 3 + x = -14.422205102 Solving 3 + x = -14.422205102 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + x = -14.422205102 + -3 Combine like terms: 3 + -3 = 0 0 + x = -14.422205102 + -3 x = -14.422205102 + -3 Combine like terms: -14.422205102 + -3 = -17.422205102 x = -17.422205102 Simplifying x = -17.422205102

Solution

The solution to the problem is based on the solutions from the subproblems. x = {11.422205102, -17.422205102}

See similar equations:

| 64=4u+16 | | 3x+7+4x-16=180 | | 4x-7-9x+20= | | 5r+8=2-r | | (6x+5)(9x+4)= | | -12x-10x+42=0 | | X=1/2m×v^2 | | 2y^2+9y+43=(y+7)(y+7) | | (3p^5m^-2)/(18pm^5) | | .7x-.4=.6x+7 | | 1/x-x/9=0 | | KE=1/2m×v^2 | | 5x+8=2-x | | (x-7)+4t=35 | | 4x^3+12x+5= | | an=4n+16 | | 5x^2*5x^2= | | an=4n+(n-1)d | | 1/2x-5=1/2x-10=15 | | 2v^2+2v+9= | | 5x^2+5x^2= | | (3-4)+(3-4)+(3-4)+(3-4)=114 | | 2+u=-8 | | -3x(4)=114 | | -4/3(0)-4 | | W(2w+5)=42 | | 3w^2-6w+2+w^2+5w-6= | | 2.3x+4.4(4x)=5572 | | 2y=62 | | 4x+8y=2400 | | 5-3-(-2)= | | 0.92y+2=y-1.04 |

Equations solver categories