x^2+6x-19=0

Simple and best practice solution for x^2+6x-19=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-19=0 equation:


Simplifying
x2 + 6x + -19 = 0

Reorder the terms:
-19 + 6x + x2 = 0

Solving
-19 + 6x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '19' to each side of the equation.
-19 + 6x + 19 + x2 = 0 + 19

Reorder the terms:
-19 + 19 + 6x + x2 = 0 + 19

Combine like terms: -19 + 19 = 0
0 + 6x + x2 = 0 + 19
6x + x2 = 0 + 19

Combine like terms: 0 + 19 = 19
6x + x2 = 19

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 = 19 + 9

Reorder the terms:
9 + 6x + x2 = 19 + 9

Combine like terms: 19 + 9 = 28
9 + 6x + x2 = 28

Factor a perfect square on the left side:
(x + 3)(x + 3) = 28

Calculate the square root of the right side: 5.291502622

Break this problem into two subproblems by setting 
(x + 3) equal to 5.291502622 and -5.291502622.

Subproblem 1

x + 3 = 5.291502622 Simplifying x + 3 = 5.291502622 Reorder the terms: 3 + x = 5.291502622 Solving 3 + x = 5.291502622 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 = 5.291502622 + -3 Combine like terms: 3 + -3 = 0 0 + x = 5.291502622 + -3 x = 5.291502622 + -3 Combine like terms: 5.291502622 + -3 = 2.291502622 x = 2.291502622 Simplifying x = 2.291502622

Subproblem 2

x + 3 = -5.291502622 Simplifying x + 3 = -5.291502622 Reorder the terms: 3 + x = -5.291502622 Solving 3 + x = -5.291502622 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 = -5.291502622 + -3 Combine like terms: 3 + -3 = 0 0 + x = -5.291502622 + -3 x = -5.291502622 + -3 Combine like terms: -5.291502622 + -3 = -8.291502622 x = -8.291502622 Simplifying x = -8.291502622

Solution

The solution to the problem is based on the solutions from the subproblems. x = {2.291502622, -8.291502622}

See similar equations:

| 7-2n=8-(-4n) | | .40y+6=10 | | 3x+9+12x=14 | | 3x^3y^3-12x^2y^3+12xy^3= | | x^2+10x+25=7 | | 2t+9=5t+12 | | -4=3+9y | | -(4-z)=3z+9 | | 3x=8+5x | | 4m+7=-3+49 | | -2+4w=-7 | | 10+6=12-4 | | 2(d-3)=-3(-d-2) | | 6+x^2=5x | | 7x+6x+7=19 | | 2x^2+14x-4=-x^2+3x | | .5(k-5)=3 | | 15=3m-(3-3m) | | x^2+1.8x=0.162 | | 126r^2+48=-204r | | -7x=-y+2 | | -9=2+6w | | 3x-(2-x)=15 | | 126r^6+48=-204r | | -3x=-2-2y | | 2b^2+11b=6 | | 3(20)=5(x+8) | | 7y=34 | | 0=-3y+3+4x | | ax-3a+3x-9= | | 2x+4=(-7x+6) | | -3x-35y=14 |

Equations solver categories