x^2+x-6=-2+4

Simple and best practice solution for x^2+x-6=-2+4 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+x-6=-2+4 equation:


Simplifying
x2 + x + -6 = -2 + 4

Reorder the terms:
-6 + x + x2 = -2 + 4

Combine like terms: -2 + 4 = 2
-6 + x + x2 = 2

Solving
-6 + x + x2 = 2

Solving for variable 'x'.

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

Combine like terms: -6 + -2 = -8
-8 + x + x2 = 2 + -2

Combine like terms: 2 + -2 = 0
-8 + x + x2 = 0

Begin completing the square.

Move the constant term to the right:

Add '8' to each side of the equation.
-8 + x + 8 + x2 = 0 + 8

Reorder the terms:
-8 + 8 + x + x2 = 0 + 8

Combine like terms: -8 + 8 = 0
0 + x + x2 = 0 + 8
x + x2 = 0 + 8

Combine like terms: 0 + 8 = 8
x + x2 = 8

The x term is x.  Take half its coefficient (0.5).
Square it (0.25) and add it to both sides.

Add '0.25' to each side of the equation.
x + 0.25 + x2 = 8 + 0.25

Reorder the terms:
0.25 + x + x2 = 8 + 0.25

Combine like terms: 8 + 0.25 = 8.25
0.25 + x + x2 = 8.25

Factor a perfect square on the left side:
(x + 0.5)(x + 0.5) = 8.25

Calculate the square root of the right side: 2.872281323

Break this problem into two subproblems by setting 
(x + 0.5) equal to 2.872281323 and -2.872281323.

Subproblem 1

x + 0.5 = 2.872281323 Simplifying x + 0.5 = 2.872281323 Reorder the terms: 0.5 + x = 2.872281323 Solving 0.5 + x = 2.872281323 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.5' to each side of the equation. 0.5 + -0.5 + x = 2.872281323 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + x = 2.872281323 + -0.5 x = 2.872281323 + -0.5 Combine like terms: 2.872281323 + -0.5 = 2.372281323 x = 2.372281323 Simplifying x = 2.372281323

Subproblem 2

x + 0.5 = -2.872281323 Simplifying x + 0.5 = -2.872281323 Reorder the terms: 0.5 + x = -2.872281323 Solving 0.5 + x = -2.872281323 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.5' to each side of the equation. 0.5 + -0.5 + x = -2.872281323 + -0.5 Combine like terms: 0.5 + -0.5 = 0.0 0.0 + x = -2.872281323 + -0.5 x = -2.872281323 + -0.5 Combine like terms: -2.872281323 + -0.5 = -3.372281323 x = -3.372281323 Simplifying x = -3.372281323

Solution

The solution to the problem is based on the solutions from the subproblems. x = {2.372281323, -3.372281323}

See similar equations:

| 16-4x=-8+8 | | 193/1/2= | | 40X+8Y=1200 | | 20=25+q | | 8/7t=-7/3 | | x=x-54 | | (x-8)/5=2/4 | | 0.25x+3=-3 | | 20p+5=50 | | -7x-12=12 | | 8m+19/2=6 | | 4x-5.6=2x+8 | | (1x1y)^3/(1x^-51y)^3 | | 7-r+12+14=24 | | 9x+6=9(x-2) | | -45r^2s^5t^3/27r^6s^2t^8 | | 0.18(y-9)+0.008y=0.02y-0.09(10) | | 13f=52 | | 4(2x+7)=-27+47 | | -74+2x=-10x+166 | | 12k=228 | | 160=10p | | 2(2x+1)-1(8x+2)=3(x-4) | | -7x+4y=-12 | | 19s=247 | | 216-2x=9x-103 | | -2/3+x=-5/8 | | 1/2x-1/6=-5/8 | | 1/4(10x-5/7)+6 | | 4t+9=5+-6 | | 1/2x-1/6=5/6 | | x-(1/6)x^3=0 |

Equations solver categories