44=15x+(.5)(5)(x^2)

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Solution for 44=15x+(.5)(5)(x^2) equation:


Simplifying
44 = 15x + (0.5)(5)(x2)

Multiply 0.5 * 5
44 = 15x + 2.5x2

Solving
44 = 15x + 2.5x2

Solving for variable 'x'.

Reorder the terms:
44 + -15x + -2.5x2 = 15x + -15x + 2.5x2 + -2.5x2

Combine like terms: 15x + -15x = 0
44 + -15x + -2.5x2 = 0 + 2.5x2 + -2.5x2
44 + -15x + -2.5x2 = 2.5x2 + -2.5x2

Combine like terms: 2.5x2 + -2.5x2 = 0.0
44 + -15x + -2.5x2 = 0.0

Begin completing the square.  Divide all terms by
-2.5 the coefficient of the squared term: 

Divide each side by '-2.5'.
-17.6 + 6x + x2 = 0

Move the constant term to the right:

Add '17.6' to each side of the equation.
-17.6 + 6x + 17.6 + x2 = 0 + 17.6

Reorder the terms:
-17.6 + 17.6 + 6x + x2 = 0 + 17.6

Combine like terms: -17.6 + 17.6 = 0.0
0.0 + 6x + x2 = 0 + 17.6
6x + x2 = 0 + 17.6

Combine like terms: 0 + 17.6 = 17.6
6x + x2 = 17.6

The x term is 6x.  Take half its coefficient (3).
Square it (9) and add it to both sides.

Add '9' to each side of the equation.
6x + 9 + x2 = 17.6 + 9

Reorder the terms:
9 + 6x + x2 = 17.6 + 9

Combine like terms: 17.6 + 9 = 26.6
9 + 6x + x2 = 26.6

Factor a perfect square on the left side:
(x + 3)(x + 3) = 26.6

Calculate the square root of the right side: 5.157518783

Break this problem into two subproblems by setting 
(x + 3) equal to 5.157518783 and -5.157518783.

Subproblem 1

x + 3 = 5.157518783 Simplifying x + 3 = 5.157518783 Reorder the terms: 3 + x = 5.157518783 Solving 3 + x = 5.157518783 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + x = 5.157518783 + -3 Combine like terms: 3 + -3 = 0 0 + x = 5.157518783 + -3 x = 5.157518783 + -3 Combine like terms: 5.157518783 + -3 = 2.157518783 x = 2.157518783 Simplifying x = 2.157518783

Subproblem 2

x + 3 = -5.157518783 Simplifying x + 3 = -5.157518783 Reorder the terms: 3 + x = -5.157518783 Solving 3 + x = -5.157518783 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-3' to each side of the equation. 3 + -3 + x = -5.157518783 + -3 Combine like terms: 3 + -3 = 0 0 + x = -5.157518783 + -3 x = -5.157518783 + -3 Combine like terms: -5.157518783 + -3 = -8.157518783 x = -8.157518783 Simplifying x = -8.157518783

Solution

The solution to the problem is based on the solutions from the subproblems. x = {2.157518783, -8.157518783}

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