x^2-202x-79800=0

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Solution for x^2-202x-79800=0 equation:


Simplifying
x2 + -202x + -79800 = 0

Reorder the terms:
-79800 + -202x + x2 = 0

Solving
-79800 + -202x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '79800' to each side of the equation.
-79800 + -202x + 79800 + x2 = 0 + 79800

Reorder the terms:
-79800 + 79800 + -202x + x2 = 0 + 79800

Combine like terms: -79800 + 79800 = 0
0 + -202x + x2 = 0 + 79800
-202x + x2 = 0 + 79800

Combine like terms: 0 + 79800 = 79800
-202x + x2 = 79800

The x term is -202x.  Take half its coefficient (-101).
Square it (10201) and add it to both sides.

Add '10201' to each side of the equation.
-202x + 10201 + x2 = 79800 + 10201

Reorder the terms:
10201 + -202x + x2 = 79800 + 10201

Combine like terms: 79800 + 10201 = 90001
10201 + -202x + x2 = 90001

Factor a perfect square on the left side:
(x + -101)(x + -101) = 90001

Calculate the square root of the right side: 300.001666662

Break this problem into two subproblems by setting 
(x + -101) equal to 300.001666662 and -300.001666662.

Subproblem 1

x + -101 = 300.001666662 Simplifying x + -101 = 300.001666662 Reorder the terms: -101 + x = 300.001666662 Solving -101 + x = 300.001666662 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '101' to each side of the equation. -101 + 101 + x = 300.001666662 + 101 Combine like terms: -101 + 101 = 0 0 + x = 300.001666662 + 101 x = 300.001666662 + 101 Combine like terms: 300.001666662 + 101 = 401.001666662 x = 401.001666662 Simplifying x = 401.001666662

Subproblem 2

x + -101 = -300.001666662 Simplifying x + -101 = -300.001666662 Reorder the terms: -101 + x = -300.001666662 Solving -101 + x = -300.001666662 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '101' to each side of the equation. -101 + 101 + x = -300.001666662 + 101 Combine like terms: -101 + 101 = 0 0 + x = -300.001666662 + 101 x = -300.001666662 + 101 Combine like terms: -300.001666662 + 101 = -199.001666662 x = -199.001666662 Simplifying x = -199.001666662

Solution

The solution to the problem is based on the solutions from the subproblems. x = {401.001666662, -199.001666662}

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