13-8x+x^2=0

Simple and best practice solution for 13-8x+x^2=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 13-8x+x^2=0 equation:


Simplifying
13 + -8x + x2 = 0

Solving
13 + -8x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '-13' to each side of the equation.
13 + -8x + -13 + x2 = 0 + -13

Reorder the terms:
13 + -13 + -8x + x2 = 0 + -13

Combine like terms: 13 + -13 = 0
0 + -8x + x2 = 0 + -13
-8x + x2 = 0 + -13

Combine like terms: 0 + -13 = -13
-8x + x2 = -13

The x term is -8x.  Take half its coefficient (-4).
Square it (16) and add it to both sides.

Add '16' to each side of the equation.
-8x + 16 + x2 = -13 + 16

Reorder the terms:
16 + -8x + x2 = -13 + 16

Combine like terms: -13 + 16 = 3
16 + -8x + x2 = 3

Factor a perfect square on the left side:
(x + -4)(x + -4) = 3

Calculate the square root of the right side: 1.732050808

Break this problem into two subproblems by setting 
(x + -4) equal to 1.732050808 and -1.732050808.

Subproblem 1

x + -4 = 1.732050808 Simplifying x + -4 = 1.732050808 Reorder the terms: -4 + x = 1.732050808 Solving -4 + x = 1.732050808 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '4' to each side of the equation. -4 + 4 + x = 1.732050808 + 4 Combine like terms: -4 + 4 = 0 0 + x = 1.732050808 + 4 x = 1.732050808 + 4 Combine like terms: 1.732050808 + 4 = 5.732050808 x = 5.732050808 Simplifying x = 5.732050808

Subproblem 2

x + -4 = -1.732050808 Simplifying x + -4 = -1.732050808 Reorder the terms: -4 + x = -1.732050808 Solving -4 + x = -1.732050808 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '4' to each side of the equation. -4 + 4 + x = -1.732050808 + 4 Combine like terms: -4 + 4 = 0 0 + x = -1.732050808 + 4 x = -1.732050808 + 4 Combine like terms: -1.732050808 + 4 = 2.267949192 x = 2.267949192 Simplifying x = 2.267949192

Solution

The solution to the problem is based on the solutions from the subproblems. x = {5.732050808, 2.267949192}

See similar equations:

| 5+3b=3b+5 | | 2X+XYZ-2= | | 10y+10=-3-4y | | 10P-2Q= | | 27-3/2×= | | 4x+1=13+3x | | 6(x^2-x-1)=0 | | 1.3-.8x+x^2=0 | | -1.3-.8x+x^2=0 | | 32-16y+5y=27 | | 8+5x-6=9x+20-2x | | 9(x-2)+3x=6(2x+2)-11 | | 4(x-r)=2x+10rfindx | | 3[6-(-3x-8)]=18x+66 | | 0*x= | | 48x-36=4x-3 | | n/(-14)10 | | x/16=y | | 0.8t^2+12t-45=0 | | 5v^2-15=0 | | 12=a-b | | volume=512 | | (8+z)(2z-7)=0 | | x^2-16=33 | | (x^2-25)/(3x)*(24)/(2x-10) | | 160-10x=20 | | 5=-(8/(u-4)) | | 0.8-0.4+0.35=X | | 0.8-0.4+0.35=c | | -8p-(1-5p)=-(p+5)-8 | | c/5-8-22 | | 5y+15=105 |

Equations solver categories