x^2-98x+100=0

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Solution for x^2-98x+100=0 equation:


Simplifying
x2 + -98x + 100 = 0

Reorder the terms:
100 + -98x + x2 = 0

Solving
100 + -98x + 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 + -98x + -100 + x2 = 0 + -100

Reorder the terms:
100 + -100 + -98x + x2 = 0 + -100

Combine like terms: 100 + -100 = 0
0 + -98x + x2 = 0 + -100
-98x + x2 = 0 + -100

Combine like terms: 0 + -100 = -100
-98x + x2 = -100

The x term is -98x.  Take half its coefficient (-49).
Square it (2401) and add it to both sides.

Add '2401' to each side of the equation.
-98x + 2401 + x2 = -100 + 2401

Reorder the terms:
2401 + -98x + x2 = -100 + 2401

Combine like terms: -100 + 2401 = 2301
2401 + -98x + x2 = 2301

Factor a perfect square on the left side:
(x + -49)(x + -49) = 2301

Calculate the square root of the right side: 47.968739821

Break this problem into two subproblems by setting 
(x + -49) equal to 47.968739821 and -47.968739821.

Subproblem 1

x + -49 = 47.968739821 Simplifying x + -49 = 47.968739821 Reorder the terms: -49 + x = 47.968739821 Solving -49 + x = 47.968739821 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '49' to each side of the equation. -49 + 49 + x = 47.968739821 + 49 Combine like terms: -49 + 49 = 0 0 + x = 47.968739821 + 49 x = 47.968739821 + 49 Combine like terms: 47.968739821 + 49 = 96.968739821 x = 96.968739821 Simplifying x = 96.968739821

Subproblem 2

x + -49 = -47.968739821 Simplifying x + -49 = -47.968739821 Reorder the terms: -49 + x = -47.968739821 Solving -49 + x = -47.968739821 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '49' to each side of the equation. -49 + 49 + x = -47.968739821 + 49 Combine like terms: -49 + 49 = 0 0 + x = -47.968739821 + 49 x = -47.968739821 + 49 Combine like terms: -47.968739821 + 49 = 1.031260179 x = 1.031260179 Simplifying x = 1.031260179

Solution

The solution to the problem is based on the solutions from the subproblems. x = {96.968739821, 1.031260179}

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