x^2+22x-11=

Simple and best practice solution for x^2+22x-11= 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+22x-11= equation:


Simplifying
x2 + 22x + -11 = 0

Reorder the terms:
-11 + 22x + x2 = 0

Solving
-11 + 22x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '11' to each side of the equation.
-11 + 22x + 11 + x2 = 0 + 11

Reorder the terms:
-11 + 11 + 22x + x2 = 0 + 11

Combine like terms: -11 + 11 = 0
0 + 22x + x2 = 0 + 11
22x + x2 = 0 + 11

Combine like terms: 0 + 11 = 11
22x + x2 = 11

The x term is 22x.  Take half its coefficient (11).
Square it (121) and add it to both sides.

Add '121' to each side of the equation.
22x + 121 + x2 = 11 + 121

Reorder the terms:
121 + 22x + x2 = 11 + 121

Combine like terms: 11 + 121 = 132
121 + 22x + x2 = 132

Factor a perfect square on the left side:
(x + 11)(x + 11) = 132

Calculate the square root of the right side: 11.489125293

Break this problem into two subproblems by setting 
(x + 11) equal to 11.489125293 and -11.489125293.

Subproblem 1

x + 11 = 11.489125293 Simplifying x + 11 = 11.489125293 Reorder the terms: 11 + x = 11.489125293 Solving 11 + x = 11.489125293 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-11' to each side of the equation. 11 + -11 + x = 11.489125293 + -11 Combine like terms: 11 + -11 = 0 0 + x = 11.489125293 + -11 x = 11.489125293 + -11 Combine like terms: 11.489125293 + -11 = 0.489125293 x = 0.489125293 Simplifying x = 0.489125293

Subproblem 2

x + 11 = -11.489125293 Simplifying x + 11 = -11.489125293 Reorder the terms: 11 + x = -11.489125293 Solving 11 + x = -11.489125293 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-11' to each side of the equation. 11 + -11 + x = -11.489125293 + -11 Combine like terms: 11 + -11 = 0 0 + x = -11.489125293 + -11 x = -11.489125293 + -11 Combine like terms: -11.489125293 + -11 = -22.489125293 x = -22.489125293 Simplifying x = -22.489125293

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.489125293, -22.489125293}

See similar equations:

| 3x+x-3=0 | | -42-(-11)= | | y=4x+80 | | 205-6x=39x+20 | | 81-18w+w^2= | | (3r-4)(4r-6)= | | x^2-18x-13=0 | | 53-5x=22x+23 | | -4(t-4)-(t+5)=10 | | 7t+6p=4t+8p | | 6p+7t=8p+4t | | 24-3n=30 | | 17/4= | | 3x+413= | | PR=x+y+z+w | | 20=30-z | | -3x=y | | 2x+23=10x+57 | | 3x-x=37 | | 10x-8= | | 6(3)-3y=-6 | | Y=-(-1)+5 | | 7x+v=4x+w | | 4x^2-11x+23=5x+8 | | x^2-3x-10=2x+4 | | x^2+19x+31=6x-5 | | x^2-4x-31=1 | | 2x+24=2x | | x(.76)=267.60 | | x(.76)=380.39 | | 2t+9=7t-6 | | y=2x^2-2x-12 |

Equations solver categories