x^2+3.8x-32.8=0

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Solution for x^2+3.8x-32.8=0 equation:


Simplifying
x2 + 3.8x + -32.8 = 0

Reorder the terms:
-32.8 + 3.8x + x2 = 0

Solving
-32.8 + 3.8x + x2 = 0

Solving for variable 'x'.

Begin completing the square.

Move the constant term to the right:

Add '32.8' to each side of the equation.
-32.8 + 3.8x + 32.8 + x2 = 0 + 32.8

Reorder the terms:
-32.8 + 32.8 + 3.8x + x2 = 0 + 32.8

Combine like terms: -32.8 + 32.8 = 0.0
0.0 + 3.8x + x2 = 0 + 32.8
3.8x + x2 = 0 + 32.8

Combine like terms: 0 + 32.8 = 32.8
3.8x + x2 = 32.8

The x term is 3.8x.  Take half its coefficient (1.9).
Square it (3.61) and add it to both sides.

Add '3.61' to each side of the equation.
3.8x + 3.61 + x2 = 32.8 + 3.61

Reorder the terms:
3.61 + 3.8x + x2 = 32.8 + 3.61

Combine like terms: 32.8 + 3.61 = 36.41
3.61 + 3.8x + x2 = 36.41

Factor a perfect square on the left side:
(x + 1.9)(x + 1.9) = 36.41

Calculate the square root of the right side: 6.034069937

Break this problem into two subproblems by setting 
(x + 1.9) equal to 6.034069937 and -6.034069937.

Subproblem 1

x + 1.9 = 6.034069937 Simplifying x + 1.9 = 6.034069937 Reorder the terms: 1.9 + x = 6.034069937 Solving 1.9 + x = 6.034069937 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.9' to each side of the equation. 1.9 + -1.9 + x = 6.034069937 + -1.9 Combine like terms: 1.9 + -1.9 = 0.0 0.0 + x = 6.034069937 + -1.9 x = 6.034069937 + -1.9 Combine like terms: 6.034069937 + -1.9 = 4.134069937 x = 4.134069937 Simplifying x = 4.134069937

Subproblem 2

x + 1.9 = -6.034069937 Simplifying x + 1.9 = -6.034069937 Reorder the terms: 1.9 + x = -6.034069937 Solving 1.9 + x = -6.034069937 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.9' to each side of the equation. 1.9 + -1.9 + x = -6.034069937 + -1.9 Combine like terms: 1.9 + -1.9 = 0.0 0.0 + x = -6.034069937 + -1.9 x = -6.034069937 + -1.9 Combine like terms: -6.034069937 + -1.9 = -7.934069937 x = -7.934069937 Simplifying x = -7.934069937

Solution

The solution to the problem is based on the solutions from the subproblems. x = {4.134069937, -7.934069937}

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