11000000=0.5x^2+10x+7000

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Solution for 11000000=0.5x^2+10x+7000 equation:


Simplifying
11000000 = 0.5x2 + 10x + 7000

Reorder the terms:
11000000 = 7000 + 10x + 0.5x2

Solving
11000000 = 7000 + 10x + 0.5x2

Solving for variable 'x'.

Combine like terms: 11000000 + -7000 = 10993000
10993000 + -10x + -0.5x2 = 7000 + 10x + 0.5x2 + -7000 + -10x + -0.5x2

Reorder the terms:
10993000 + -10x + -0.5x2 = 7000 + -7000 + 10x + -10x + 0.5x2 + -0.5x2

Combine like terms: 7000 + -7000 = 0
10993000 + -10x + -0.5x2 = 0 + 10x + -10x + 0.5x2 + -0.5x2
10993000 + -10x + -0.5x2 = 10x + -10x + 0.5x2 + -0.5x2

Combine like terms: 10x + -10x = 0
10993000 + -10x + -0.5x2 = 0 + 0.5x2 + -0.5x2
10993000 + -10x + -0.5x2 = 0.5x2 + -0.5x2

Combine like terms: 0.5x2 + -0.5x2 = 0.0
10993000 + -10x + -0.5x2 = 0.0

Begin completing the square.  Divide all terms by
-0.5 the coefficient of the squared term: 

Divide each side by '-0.5'.
-21986000 + 20x + x2 = 0

Move the constant term to the right:

Add '21986000' to each side of the equation.
-21986000 + 20x + 21986000 + x2 = 0 + 21986000

Reorder the terms:
-21986000 + 21986000 + 20x + x2 = 0 + 21986000

Combine like terms: -21986000 + 21986000 = 0
0 + 20x + x2 = 0 + 21986000
20x + x2 = 0 + 21986000

Combine like terms: 0 + 21986000 = 21986000
20x + x2 = 21986000

The x term is 20x.  Take half its coefficient (10).
Square it (100) and add it to both sides.

Add '100' to each side of the equation.
20x + 100 + x2 = 21986000 + 100

Reorder the terms:
100 + 20x + x2 = 21986000 + 100

Combine like terms: 21986000 + 100 = 21986100
100 + 20x + x2 = 21986100

Factor a perfect square on the left side:
(x + 10)(x + 10) = 21986100

Calculate the square root of the right side: 4688.933780722

Break this problem into two subproblems by setting 
(x + 10) equal to 4688.933780722 and -4688.933780722.

Subproblem 1

x + 10 = 4688.933780722 Simplifying x + 10 = 4688.933780722 Reorder the terms: 10 + x = 4688.933780722 Solving 10 + x = 4688.933780722 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-10' to each side of the equation. 10 + -10 + x = 4688.933780722 + -10 Combine like terms: 10 + -10 = 0 0 + x = 4688.933780722 + -10 x = 4688.933780722 + -10 Combine like terms: 4688.933780722 + -10 = 4678.933780722 x = 4678.933780722 Simplifying x = 4678.933780722

Subproblem 2

x + 10 = -4688.933780722 Simplifying x + 10 = -4688.933780722 Reorder the terms: 10 + x = -4688.933780722 Solving 10 + x = -4688.933780722 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-10' to each side of the equation. 10 + -10 + x = -4688.933780722 + -10 Combine like terms: 10 + -10 = 0 0 + x = -4688.933780722 + -10 x = -4688.933780722 + -10 Combine like terms: -4688.933780722 + -10 = -4698.933780722 x = -4698.933780722 Simplifying x = -4698.933780722

Solution

The solution to the problem is based on the solutions from the subproblems. x = {4678.933780722, -4698.933780722}

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