x^2-99x+100=0

Simple and best practice solution for x^2-99x+100=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^2-99x+100=0 equation:


Simplifying
x2 + -99x + 100 = 0

Reorder the terms:
100 + -99x + x2 = 0

Solving
100 + -99x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '-100' to each side of the equation.
100 + -99x + -100 + x2 = 0 + -100

Reorder the terms:
100 + -100 + -99x + x2 = 0 + -100

Combine like terms: 100 + -100 = 0
0 + -99x + x2 = 0 + -100
-99x + x2 = 0 + -100

Combine like terms: 0 + -100 = -100
-99x + x2 = -100

The x term is -99x.  Take half its coefficient (-49.5).
Square it (2450.25) and add it to both sides.

Add '2450.25' to each side of the equation.
-99x + 2450.25 + x2 = -100 + 2450.25

Reorder the terms:
2450.25 + -99x + x2 = -100 + 2450.25

Combine like terms: -100 + 2450.25 = 2350.25
2450.25 + -99x + x2 = 2350.25

Factor a perfect square on the left side:
(x + -49.5)(x + -49.5) = 2350.25

Calculate the square root of the right side: 48.479377059

Break this problem into two subproblems by setting 
(x + -49.5) equal to 48.479377059 and -48.479377059.

Subproblem 1

x + -49.5 = 48.479377059 Simplifying x + -49.5 = 48.479377059 Reorder the terms: -49.5 + x = 48.479377059 Solving -49.5 + x = 48.479377059 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '49.5' to each side of the equation. -49.5 + 49.5 + x = 48.479377059 + 49.5 Combine like terms: -49.5 + 49.5 = 0.0 0.0 + x = 48.479377059 + 49.5 x = 48.479377059 + 49.5 Combine like terms: 48.479377059 + 49.5 = 97.979377059 x = 97.979377059 Simplifying x = 97.979377059

Subproblem 2

x + -49.5 = -48.479377059 Simplifying x + -49.5 = -48.479377059 Reorder the terms: -49.5 + x = -48.479377059 Solving -49.5 + x = -48.479377059 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '49.5' to each side of the equation. -49.5 + 49.5 + x = -48.479377059 + 49.5 Combine like terms: -49.5 + 49.5 = 0.0 0.0 + x = -48.479377059 + 49.5 x = -48.479377059 + 49.5 Combine like terms: -48.479377059 + 49.5 = 1.020622941 x = 1.020622941 Simplifying x = 1.020622941

Solution

The solution to the problem is based on the solutions from the subproblems. x = {97.979377059, 1.020622941}

See similar equations:

| n/4+3=-12 | | -x-2=1-3x | | C=55+s | | 27x+1=z | | 2n+35=635 | | 5k-4k=11 | | 3a+2-5a=14a+2 | | 3(x^2+y^2)=10xy | | a(9-7)=(9-7) | | 3/4x-1=5x | | 9=4x+6y | | 7(x-5)+3=40 | | 43-1x=7-3x | | X^2n-36= | | px^2+5x+p=0 | | 2(x+4)3=3x-1 | | 2a+3a+2=34 | | (k/4)=-(17/2) | | x-47=14 | | 21x^2+5x= | | 4(a+20)=32 | | 7n+18-5n=38 | | -8=12-4m | | 4(a+20)=9 | | 6(4x+1)=5-11x | | 8n+16-10n=30 | | -g=2(3+3)+-4(g+1) | | 3x+20=4x+40 | | 66-u=155 | | 137=-1-3(6n-4) | | 5x^3+8x-6=0 | | -5n+10+3n=18 |

Equations solver categories