98(x)-x^2-7.96=0

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Solution for 98(x)-x^2-7.96=0 equation:


Simplifying
98(x) + -1x2 + -7.96 = 0

Reorder the terms:
-7.96 + 98x + -1x2 = 0

Solving
-7.96 + 98x + -1x2 = 0

Solving for variable 'x'.

Begin completing the square.  Divide all terms by
-1 the coefficient of the squared term: 

Divide each side by '-1'.
7.96 + -98x + x2 = 0

Move the constant term to the right:

Add '-7.96' to each side of the equation.
7.96 + -98x + -7.96 + x2 = 0 + -7.96

Reorder the terms:
7.96 + -7.96 + -98x + x2 = 0 + -7.96

Combine like terms: 7.96 + -7.96 = 0.00
0.00 + -98x + x2 = 0 + -7.96
-98x + x2 = 0 + -7.96

Combine like terms: 0 + -7.96 = -7.96
-98x + x2 = -7.96

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 = -7.96 + 2401

Reorder the terms:
2401 + -98x + x2 = -7.96 + 2401

Combine like terms: -7.96 + 2401 = 2393.04
2401 + -98x + x2 = 2393.04

Factor a perfect square on the left side:
(x + -49)(x + -49) = 2393.04

Calculate the square root of the right side: 48.918708078

Break this problem into two subproblems by setting 
(x + -49) equal to 48.918708078 and -48.918708078.

Subproblem 1

x + -49 = 48.918708078 Simplifying x + -49 = 48.918708078 Reorder the terms: -49 + x = 48.918708078 Solving -49 + x = 48.918708078 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 = 48.918708078 + 49 Combine like terms: -49 + 49 = 0 0 + x = 48.918708078 + 49 x = 48.918708078 + 49 Combine like terms: 48.918708078 + 49 = 97.918708078 x = 97.918708078 Simplifying x = 97.918708078

Subproblem 2

x + -49 = -48.918708078 Simplifying x + -49 = -48.918708078 Reorder the terms: -49 + x = -48.918708078 Solving -49 + x = -48.918708078 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 = -48.918708078 + 49 Combine like terms: -49 + 49 = 0 0 + x = -48.918708078 + 49 x = -48.918708078 + 49 Combine like terms: -48.918708078 + 49 = 0.081291922 x = 0.081291922 Simplifying x = 0.081291922

Solution

The solution to the problem is based on the solutions from the subproblems. x = {97.918708078, 0.081291922}

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