-.03x^2+3.7x-49=0

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Solution for -.03x^2+3.7x-49=0 equation:


Simplifying
-0.03x2 + 3.7x + -49 = 0

Reorder the terms:
-49 + 3.7x + -0.03x2 = 0

Solving
-49 + 3.7x + -0.03x2 = 0

Solving for variable 'x'.

Begin completing the square.  Divide all terms by
-0.03 the coefficient of the squared term: 

Divide each side by '-0.03'.
1633.333333 + -123.3333333x + x2 = 0

Move the constant term to the right:

Add '-1633.333333' to each side of the equation.
1633.333333 + -123.3333333x + -1633.333333 + x2 = 0 + -1633.333333

Reorder the terms:
1633.333333 + -1633.333333 + -123.3333333x + x2 = 0 + -1633.333333

Combine like terms: 1633.333333 + -1633.333333 = 0.000000
0.000000 + -123.3333333x + x2 = 0 + -1633.333333
-123.3333333x + x2 = 0 + -1633.333333

Combine like terms: 0 + -1633.333333 = -1633.333333
-123.3333333x + x2 = -1633.333333

The x term is -123.3333333x.  Take half its coefficient (-61.66666665).
Square it (3802.777776) and add it to both sides.

Add '3802.777776' to each side of the equation.
-123.3333333x + 3802.777776 + x2 = -1633.333333 + 3802.777776

Reorder the terms:
3802.777776 + -123.3333333x + x2 = -1633.333333 + 3802.777776

Combine like terms: -1633.333333 + 3802.777776 = 2169.444443
3802.777776 + -123.3333333x + x2 = 2169.444443

Factor a perfect square on the left side:
(x + -61.66666665)(x + -61.66666665) = 2169.444443

Calculate the square root of the right side: 46.577295359

Break this problem into two subproblems by setting 
(x + -61.66666665) equal to 46.577295359 and -46.577295359.

Subproblem 1

x + -61.66666665 = 46.577295359 Simplifying x + -61.66666665 = 46.577295359 Reorder the terms: -61.66666665 + x = 46.577295359 Solving -61.66666665 + x = 46.577295359 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '61.66666665' to each side of the equation. -61.66666665 + 61.66666665 + x = 46.577295359 + 61.66666665 Combine like terms: -61.66666665 + 61.66666665 = 0.00000000 0.00000000 + x = 46.577295359 + 61.66666665 x = 46.577295359 + 61.66666665 Combine like terms: 46.577295359 + 61.66666665 = 108.243962009 x = 108.243962009 Simplifying x = 108.243962009

Subproblem 2

x + -61.66666665 = -46.577295359 Simplifying x + -61.66666665 = -46.577295359 Reorder the terms: -61.66666665 + x = -46.577295359 Solving -61.66666665 + x = -46.577295359 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '61.66666665' to each side of the equation. -61.66666665 + 61.66666665 + x = -46.577295359 + 61.66666665 Combine like terms: -61.66666665 + 61.66666665 = 0.00000000 0.00000000 + x = -46.577295359 + 61.66666665 x = -46.577295359 + 61.66666665 Combine like terms: -46.577295359 + 61.66666665 = 15.089371291 x = 15.089371291 Simplifying x = 15.089371291

Solution

The solution to the problem is based on the solutions from the subproblems. x = {108.243962009, 15.089371291}

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