x^2+6*x+2=0

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


Simplifying
x2 + 6x + 2 = 0

Reorder the terms:
2 + 6x + x2 = 0

Solving
2 + 6x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '-2' to each side of the equation.
2 + 6x + -2 + x2 = 0 + -2

Reorder the terms:
2 + -2 + 6x + x2 = 0 + -2

Combine like terms: 2 + -2 = 0
0 + 6x + x2 = 0 + -2
6x + x2 = 0 + -2

Combine like terms: 0 + -2 = -2
6x + x2 = -2

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 = -2 + 9

Reorder the terms:
9 + 6x + x2 = -2 + 9

Combine like terms: -2 + 9 = 7
9 + 6x + x2 = 7

Factor a perfect square on the left side:
(x + 3)(x + 3) = 7

Calculate the square root of the right side: 2.645751311

Break this problem into two subproblems by setting 
(x + 3) equal to 2.645751311 and -2.645751311.

Subproblem 1

x + 3 = 2.645751311 Simplifying x + 3 = 2.645751311 Reorder the terms: 3 + x = 2.645751311 Solving 3 + x = 2.645751311 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 = 2.645751311 + -3 Combine like terms: 3 + -3 = 0 0 + x = 2.645751311 + -3 x = 2.645751311 + -3 Combine like terms: 2.645751311 + -3 = -0.354248689 x = -0.354248689 Simplifying x = -0.354248689

Subproblem 2

x + 3 = -2.645751311 Simplifying x + 3 = -2.645751311 Reorder the terms: 3 + x = -2.645751311 Solving 3 + x = -2.645751311 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 = -2.645751311 + -3 Combine like terms: 3 + -3 = 0 0 + x = -2.645751311 + -3 x = -2.645751311 + -3 Combine like terms: -2.645751311 + -3 = -5.645751311 x = -5.645751311 Simplifying x = -5.645751311

Solution

The solution to the problem is based on the solutions from the subproblems. x = {-0.354248689, -5.645751311}

See similar equations:

| 9+3x+5x=41 | | 9/8u-81=-72 | | 3x-1/x | | 5x-1-6x=-8 | | -2x=-16.8 | | 2(4x-8)=1x+8 | | (9-8i)+(9+3i)=0 | | 33=2x+x+6 | | 12x+4y-24.56=0 | | (2x^3)(5x)= | | 2(4x-8)=x+8 | | 6x+4+x=-59 | | 2x^3+3x^2-12x+3=0 | | 9-(90/17) | | -11=-7x+4x+10 | | 6k=-36 | | 5x^2+34x-22=0 | | 6k-k-5=-30 | | 18x^2+12x-1=0 | | 3e^-9/18 | | 4.50x=42.50 | | x+(x-6)(x+5)=44 | | X(3-5x)=x+4 | | -x+8+4x=-7 | | 3x-5/4-x=0 | | sqrt(45.9)=(2x)/(1-x) | | 4m^2+27m-40=0 | | 6x+9+7x=61 | | 3v+6=3 | | X+7y=-16 | | S={0,-1/2} | | 2w^2+38=0 |

Equations solver categories