x^2+12x+19=0

Simple and best practice solution for x^2+12x+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+12x+19=0 equation:


Simplifying
x2 + 12x + 19 = 0

Reorder the terms:
19 + 12x + x2 = 0

Solving
19 + 12x + 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 + 12x + -19 + x2 = 0 + -19

Reorder the terms:
19 + -19 + 12x + x2 = 0 + -19

Combine like terms: 19 + -19 = 0
0 + 12x + x2 = 0 + -19
12x + x2 = 0 + -19

Combine like terms: 0 + -19 = -19
12x + x2 = -19

The x term is 12x.  Take half its coefficient (6).
Square it (36) and add it to both sides.

Add '36' to each side of the equation.
12x + 36 + x2 = -19 + 36

Reorder the terms:
36 + 12x + x2 = -19 + 36

Combine like terms: -19 + 36 = 17
36 + 12x + x2 = 17

Factor a perfect square on the left side:
(x + 6)(x + 6) = 17

Calculate the square root of the right side: 4.123105626

Break this problem into two subproblems by setting 
(x + 6) equal to 4.123105626 and -4.123105626.

Subproblem 1

x + 6 = 4.123105626 Simplifying x + 6 = 4.123105626 Reorder the terms: 6 + x = 4.123105626 Solving 6 + x = 4.123105626 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-6' to each side of the equation. 6 + -6 + x = 4.123105626 + -6 Combine like terms: 6 + -6 = 0 0 + x = 4.123105626 + -6 x = 4.123105626 + -6 Combine like terms: 4.123105626 + -6 = -1.876894374 x = -1.876894374 Simplifying x = -1.876894374

Subproblem 2

x + 6 = -4.123105626 Simplifying x + 6 = -4.123105626 Reorder the terms: 6 + x = -4.123105626 Solving 6 + x = -4.123105626 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-6' to each side of the equation. 6 + -6 + x = -4.123105626 + -6 Combine like terms: 6 + -6 = 0 0 + x = -4.123105626 + -6 x = -4.123105626 + -6 Combine like terms: -4.123105626 + -6 = -10.123105626 x = -10.123105626 Simplifying x = -10.123105626

Solution

The solution to the problem is based on the solutions from the subproblems. x = {-1.876894374, -10.123105626}

See similar equations:

| 13x-(5x-11)=-9 | | .5*8=j | | p=62in | | x-(2x+1)=8-(3x+3) | | -4z+8=-27+z | | q+0.3=1.1 | | H-7=.25(h+2) | | z+4.2=9.1 | | -5a=2-a | | 0.005x-0.03=0.01 | | 2y-10=-4-2y | | 0=16t^2+270 | | 20-3x=-4 | | x+(x+35)+(3x-39)=604 | | 6-a+5a=30 | | x^2+2-63=0 | | 7d+6=9-3d | | 6w-5=8w | | 99+6x=-3 | | 12=3+(4-5)x | | -236=29-5g | | 3y+4=4y-5 | | 6x(2y+y)-7xy= | | 5b-7=120 | | 7t+5=5t+10 | | -3-3(5b-8)=(-2b+2) | | 36x^2-49=0 | | 25x^2+40x+16=0 | | .75m-5=16 | | 3y+4=4y+5 | | s-6=39 | | 3x^2-23x-70=0 |

Equations solver categories