4.905x^2-58x+100=0

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Solution for 4.905x^2-58x+100=0 equation:


Simplifying
4.905x2 + -58x + 100 = 0

Reorder the terms:
100 + -58x + 4.905x2 = 0

Solving
100 + -58x + 4.905x2 = 0

Solving for variable 'x'.

Begin completing the square.  Divide all terms by
4.905 the coefficient of the squared term: 

Divide each side by '4.905'.
20.38735984 + -11.82466871x + x2 = 0

Move the constant term to the right:

Add '-20.38735984' to each side of the equation.
20.38735984 + -11.82466871x + -20.38735984 + x2 = 0 + -20.38735984

Reorder the terms:
20.38735984 + -20.38735984 + -11.82466871x + x2 = 0 + -20.38735984

Combine like terms: 20.38735984 + -20.38735984 = 0.00000000
0.00000000 + -11.82466871x + x2 = 0 + -20.38735984
-11.82466871x + x2 = 0 + -20.38735984

Combine like terms: 0 + -20.38735984 = -20.38735984
-11.82466871x + x2 = -20.38735984

The x term is -11.82466871x.  Take half its coefficient (-5.912334355).
Square it (34.95569753) and add it to both sides.

Add '34.95569753' to each side of the equation.
-11.82466871x + 34.95569753 + x2 = -20.38735984 + 34.95569753

Reorder the terms:
34.95569753 + -11.82466871x + x2 = -20.38735984 + 34.95569753

Combine like terms: -20.38735984 + 34.95569753 = 14.56833769
34.95569753 + -11.82466871x + x2 = 14.56833769

Factor a perfect square on the left side:
(x + -5.912334355)(x + -5.912334355) = 14.56833769

Calculate the square root of the right side: 3.816849184

Break this problem into two subproblems by setting 
(x + -5.912334355) equal to 3.816849184 and -3.816849184.

Subproblem 1

x + -5.912334355 = 3.816849184 Simplifying x + -5.912334355 = 3.816849184 Reorder the terms: -5.912334355 + x = 3.816849184 Solving -5.912334355 + x = 3.816849184 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '5.912334355' to each side of the equation. -5.912334355 + 5.912334355 + x = 3.816849184 + 5.912334355 Combine like terms: -5.912334355 + 5.912334355 = 0.000000000 0.000000000 + x = 3.816849184 + 5.912334355 x = 3.816849184 + 5.912334355 Combine like terms: 3.816849184 + 5.912334355 = 9.729183539 x = 9.729183539 Simplifying x = 9.729183539

Subproblem 2

x + -5.912334355 = -3.816849184 Simplifying x + -5.912334355 = -3.816849184 Reorder the terms: -5.912334355 + x = -3.816849184 Solving -5.912334355 + x = -3.816849184 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '5.912334355' to each side of the equation. -5.912334355 + 5.912334355 + x = -3.816849184 + 5.912334355 Combine like terms: -5.912334355 + 5.912334355 = 0.000000000 0.000000000 + x = -3.816849184 + 5.912334355 x = -3.816849184 + 5.912334355 Combine like terms: -3.816849184 + 5.912334355 = 2.095485171 x = 2.095485171 Simplifying x = 2.095485171

Solution

The solution to the problem is based on the solutions from the subproblems. x = {9.729183539, 2.095485171}

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