x(x)+9999999x+10000000=0

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Solution for x(x)+9999999x+10000000=0 equation:


Simplifying
x(x) + 9999999x + 10000000 = 0

Multiply x * x
x2 + 9999999x + 10000000 = 0

Reorder the terms:
10000000 + 9999999x + x2 = 0

Solving
10000000 + 9999999x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '-10000000' to each side of the equation.
10000000 + 9999999x + -10000000 + x2 = 0 + -10000000

Reorder the terms:
10000000 + -10000000 + 9999999x + x2 = 0 + -10000000

Combine like terms: 10000000 + -10000000 = 0
0 + 9999999x + x2 = 0 + -10000000
9999999x + x2 = 0 + -10000000

Combine like terms: 0 + -10000000 = -10000000
9999999x + x2 = -10000000

The x term is 9999999x.  Take half its coefficient (4999999.5).
Square it (24999995000000) and add it to both sides.

Add '24999995000000' to each side of the equation.
9999999x + 24999995000000 + x2 = -10000000 + 24999995000000

Reorder the terms:
24999995000000 + 9999999x + x2 = -10000000 + 24999995000000

Combine like terms: -10000000 + 24999995000000 = 24999985000000
24999995000000 + 9999999x + x2 = 24999985000000

Factor a perfect square on the left side:
(x + 4999999.5)(x + 4999999.5) = 24999985000000

Calculate the square root of the right side: 4999998.499999775

Break this problem into two subproblems by setting 
(x + 4999999.5) equal to 4999998.499999775 and -4999998.499999775.

Subproblem 1

x + 4999999.5 = 4999998.499999775 Simplifying x + 4999999.5 = 4999998.499999775 Reorder the terms: 4999999.5 + x = 4999998.499999775 Solving 4999999.5 + x = 4999998.499999775 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-4999999.5' to each side of the equation. 4999999.5 + -4999999.5 + x = 4999998.499999775 + -4999999.5 Combine like terms: 4999999.5 + -4999999.5 = 0.0 0.0 + x = 4999998.499999775 + -4999999.5 x = 4999998.499999775 + -4999999.5 Combine like terms: 4999998.499999775 + -4999999.5 = -1.000000225 x = -1.000000225 Simplifying x = -1.000000225

Subproblem 2

x + 4999999.5 = -4999998.499999775 Simplifying x + 4999999.5 = -4999998.499999775 Reorder the terms: 4999999.5 + x = -4999998.499999775 Solving 4999999.5 + x = -4999998.499999775 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-4999999.5' to each side of the equation. 4999999.5 + -4999999.5 + x = -4999998.499999775 + -4999999.5 Combine like terms: 4999999.5 + -4999999.5 = 0.0 0.0 + x = -4999998.499999775 + -4999999.5 x = -4999998.499999775 + -4999999.5 Combine like terms: -4999998.499999775 + -4999999.5 = -9999997.999999775 x = -9999997.999999775 Simplifying x = -9999997.999999775

Solution

The solution to the problem is based on the solutions from the subproblems. x = {-1.000000225, -9999997.999999775}

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