6x+x^2+2=

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


Simplifying
6x + x2 + 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:

| 5x+2(-3x-4)=15 | | (-4)(4-4x)-8((-7x)-5)=24 | | 5(5x+5)=25x+25 | | -3(-3x-2)+1=x-9 | | 5(r-8)+8(5r+6)=-37 | | -6(x-4)-6=18 | | q^2+2q=35 | | 4y-9=5y-6 | | 5+4b=28 | | 12x-32y= | | 5((-7a)-6)+7(8+2a)=(-79) | | 0.428571x+4=16 | | X=-1+3x | | 3x-9=7+2v-v | | x+x+2=74 | | 2(k-7)-4((-8k)+5)=34 | | .08(4312.5)+.03=345 | | 2[x-(2-3x)]=13x+4 | | X+13=4x+12 | | 3+2x-1=14 | | 37-(2c+3)=4(x+5)+c | | y=10(41)-155 | | (-56)=(-4)(1+8r)+4((-1)+2r) | | 7x+4=7x-9 | | 4m+5m-3=33 | | 18+n=m | | .08(4312.5)+.03y=345 | | 6-4x=6+-8x+2 | | 5w+8=-27 | | 4(5x+5)=-34+14 | | A-36=8.8 | | 9x-5=2x |

Equations solver categories