x^2-22x+0.9=0

Simple and best practice solution for x^2-22x+0.9=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^2-22x+0.9=0 equation:


Simplifying
x2 + -22x + 0.9 = 0

Reorder the terms:
0.9 + -22x + x2 = 0

Solving
0.9 + -22x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '-0.9' to each side of the equation.
0.9 + -22x + -0.9 + x2 = 0 + -0.9

Reorder the terms:
0.9 + -0.9 + -22x + x2 = 0 + -0.9

Combine like terms: 0.9 + -0.9 = 0.0
0.0 + -22x + x2 = 0 + -0.9
-22x + x2 = 0 + -0.9

Combine like terms: 0 + -0.9 = -0.9
-22x + x2 = -0.9

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 = -0.9 + 121

Reorder the terms:
121 + -22x + x2 = -0.9 + 121

Combine like terms: -0.9 + 121 = 120.1
121 + -22x + x2 = 120.1

Factor a perfect square on the left side:
(x + -11)(x + -11) = 120.1

Calculate the square root of the right side: 10.959014554

Break this problem into two subproblems by setting 
(x + -11) equal to 10.959014554 and -10.959014554.

Subproblem 1

x + -11 = 10.959014554 Simplifying x + -11 = 10.959014554 Reorder the terms: -11 + x = 10.959014554 Solving -11 + x = 10.959014554 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 = 10.959014554 + 11 Combine like terms: -11 + 11 = 0 0 + x = 10.959014554 + 11 x = 10.959014554 + 11 Combine like terms: 10.959014554 + 11 = 21.959014554 x = 21.959014554 Simplifying x = 21.959014554

Subproblem 2

x + -11 = -10.959014554 Simplifying x + -11 = -10.959014554 Reorder the terms: -11 + x = -10.959014554 Solving -11 + x = -10.959014554 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 = -10.959014554 + 11 Combine like terms: -11 + 11 = 0 0 + x = -10.959014554 + 11 x = -10.959014554 + 11 Combine like terms: -10.959014554 + 11 = 0.040985446 x = 0.040985446 Simplifying x = 0.040985446

Solution

The solution to the problem is based on the solutions from the subproblems. x = {21.959014554, 0.040985446}

See similar equations:

| h=-5t+15t | | 5x+5+4=2x+-6 | | 8+4x=11+(3x+5) | | x+37+x+67=180 | | p+p=p+3 | | 11+.80x=23 | | 2(x-8)+1=2(x-12) | | -7+6n=1+7n | | 3G-9G=-36 | | -3(4t-5)+9t=4t-8 | | 0=x^2-22x+0.9 | | p-26.2=22.9 | | 4cos^2-4cos^2-1=0 | | -6(v-1)= | | 10u+7=8(3u-4)-9 | | 5+3+2x=16 | | 27y^2-37y+10= | | 2(7p-12)= | | 45+4x+15=180 | | F=1.8 | | 20=1x | | 3(4)-2y=22 | | 1-3-(-2x)=-x-3-(x+2) | | 3X-9+X+3X-9+X=38 | | -2n-9=n+6 | | 1-6r=15-8r | | 6y-10= | | -4y^2-16y-15=0 | | 16+14x=14x+16 | | 3=-1(-1)+b | | 4+12x=-28 | | -8.15+9= |

Equations solver categories