x^2+4x-22=0

Simple and best practice solution for x^2+4x-22=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+4x-22=0 equation:


Simplifying
x2 + 4x + -22 = 0

Reorder the terms:
-22 + 4x + x2 = 0

Solving
-22 + 4x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '22' to each side of the equation.
-22 + 4x + 22 + x2 = 0 + 22

Reorder the terms:
-22 + 22 + 4x + x2 = 0 + 22

Combine like terms: -22 + 22 = 0
0 + 4x + x2 = 0 + 22
4x + x2 = 0 + 22

Combine like terms: 0 + 22 = 22
4x + x2 = 22

The x term is 4x.  Take half its coefficient (2).
Square it (4) and add it to both sides.

Add '4' to each side of the equation.
4x + 4 + x2 = 22 + 4

Reorder the terms:
4 + 4x + x2 = 22 + 4

Combine like terms: 22 + 4 = 26
4 + 4x + x2 = 26

Factor a perfect square on the left side:
(x + 2)(x + 2) = 26

Calculate the square root of the right side: 5.099019514

Break this problem into two subproblems by setting 
(x + 2) equal to 5.099019514 and -5.099019514.

Subproblem 1

x + 2 = 5.099019514 Simplifying x + 2 = 5.099019514 Reorder the terms: 2 + x = 5.099019514 Solving 2 + x = 5.099019514 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + x = 5.099019514 + -2 Combine like terms: 2 + -2 = 0 0 + x = 5.099019514 + -2 x = 5.099019514 + -2 Combine like terms: 5.099019514 + -2 = 3.099019514 x = 3.099019514 Simplifying x = 3.099019514

Subproblem 2

x + 2 = -5.099019514 Simplifying x + 2 = -5.099019514 Reorder the terms: 2 + x = -5.099019514 Solving 2 + x = -5.099019514 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + x = -5.099019514 + -2 Combine like terms: 2 + -2 = 0 0 + x = -5.099019514 + -2 x = -5.099019514 + -2 Combine like terms: -5.099019514 + -2 = -7.099019514 x = -7.099019514 Simplifying x = -7.099019514

Solution

The solution to the problem is based on the solutions from the subproblems. x = {3.099019514, -7.099019514}

See similar equations:

| X+5x+2+1=2x+2+2x+2x | | 2x(4+3)=14 | | 3t+1=0.75t-20 | | 3v=v-9 | | V-10/6 | | 4/8x+7 | | 2.85y=12.85y-2 | | 62x=10 | | 8=5x+7 | | 4/v-8 | | -19/8z | | 8(9x-5)+12x= | | -14(-9-4m)=42 | | -38=-2 | | x-(x*0.28)=100 | | x-(x*.028)=100 | | 60-(2x+13)=2(x+6)+x | | (1+X)+x=10 | | 3x+2x=0 | | 6.5x-3.3=9.75-2.2x | | u+u+7+(u+7)2=543 | | 2+5y=10y-1/2 | | (1+X)+x=1.10 | | (2x+25)+(3x-5)=180 | | 6n=2n+8 | | (1+X)*X=1.10 | | -9=4.5x | | -4x+10=5y | | 41.00x4/7 | | 0.333b-3=b+9 | | 12-b=(3+b/2)-12 | | 12-b=(3+2b)-12 |

Equations solver categories