.2x^2-24=-13x

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Solution for .2x^2-24=-13x equation:


Simplifying
0.2x2 + -24 = -13x

Reorder the terms:
-24 + 0.2x2 = -13x

Solving
-24 + 0.2x2 = -13x

Solving for variable 'x'.

Reorder the terms:
-24 + 13x + 0.2x2 = -13x + 13x

Combine like terms: -13x + 13x = 0
-24 + 13x + 0.2x2 = 0

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

Divide each side by '0.2'.
-120 + 65x + x2 = 0

Move the constant term to the right:

Add '120' to each side of the equation.
-120 + 65x + 120 + x2 = 0 + 120

Reorder the terms:
-120 + 120 + 65x + x2 = 0 + 120

Combine like terms: -120 + 120 = 0
0 + 65x + x2 = 0 + 120
65x + x2 = 0 + 120

Combine like terms: 0 + 120 = 120
65x + x2 = 120

The x term is 65x.  Take half its coefficient (32.5).
Square it (1056.25) and add it to both sides.

Add '1056.25' to each side of the equation.
65x + 1056.25 + x2 = 120 + 1056.25

Reorder the terms:
1056.25 + 65x + x2 = 120 + 1056.25

Combine like terms: 120 + 1056.25 = 1176.25
1056.25 + 65x + x2 = 1176.25

Factor a perfect square on the left side:
(x + 32.5)(x + 32.5) = 1176.25

Calculate the square root of the right side: 34.296501279

Break this problem into two subproblems by setting 
(x + 32.5) equal to 34.296501279 and -34.296501279.

Subproblem 1

x + 32.5 = 34.296501279 Simplifying x + 32.5 = 34.296501279 Reorder the terms: 32.5 + x = 34.296501279 Solving 32.5 + x = 34.296501279 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-32.5' to each side of the equation. 32.5 + -32.5 + x = 34.296501279 + -32.5 Combine like terms: 32.5 + -32.5 = 0.0 0.0 + x = 34.296501279 + -32.5 x = 34.296501279 + -32.5 Combine like terms: 34.296501279 + -32.5 = 1.796501279 x = 1.796501279 Simplifying x = 1.796501279

Subproblem 2

x + 32.5 = -34.296501279 Simplifying x + 32.5 = -34.296501279 Reorder the terms: 32.5 + x = -34.296501279 Solving 32.5 + x = -34.296501279 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-32.5' to each side of the equation. 32.5 + -32.5 + x = -34.296501279 + -32.5 Combine like terms: 32.5 + -32.5 = 0.0 0.0 + x = -34.296501279 + -32.5 x = -34.296501279 + -32.5 Combine like terms: -34.296501279 + -32.5 = -66.796501279 x = -66.796501279 Simplifying x = -66.796501279

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.796501279, -66.796501279}

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