-.01x^2-0.3x+17=0

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Solution for -.01x^2-0.3x+17=0 equation:


Simplifying
-0.01x2 + -0.3x + 17 = 0

Reorder the terms:
17 + -0.3x + -0.01x2 = 0

Solving
17 + -0.3x + -0.01x2 = 0

Solving for variable 'x'.

Begin completing the square.  Divide all terms by
-0.01 the coefficient of the squared term: 

Divide each side by '-0.01'.
-1700 + 30x + x2 = 0

Move the constant term to the right:

Add '1700' to each side of the equation.
-1700 + 30x + 1700 + x2 = 0 + 1700

Reorder the terms:
-1700 + 1700 + 30x + x2 = 0 + 1700

Combine like terms: -1700 + 1700 = 0
0 + 30x + x2 = 0 + 1700
30x + x2 = 0 + 1700

Combine like terms: 0 + 1700 = 1700
30x + x2 = 1700

The x term is 30x.  Take half its coefficient (15).
Square it (225) and add it to both sides.

Add '225' to each side of the equation.
30x + 225 + x2 = 1700 + 225

Reorder the terms:
225 + 30x + x2 = 1700 + 225

Combine like terms: 1700 + 225 = 1925
225 + 30x + x2 = 1925

Factor a perfect square on the left side:
(x + 15)(x + 15) = 1925

Calculate the square root of the right side: 43.874821937

Break this problem into two subproblems by setting 
(x + 15) equal to 43.874821937 and -43.874821937.

Subproblem 1

x + 15 = 43.874821937 Simplifying x + 15 = 43.874821937 Reorder the terms: 15 + x = 43.874821937 Solving 15 + x = 43.874821937 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-15' to each side of the equation. 15 + -15 + x = 43.874821937 + -15 Combine like terms: 15 + -15 = 0 0 + x = 43.874821937 + -15 x = 43.874821937 + -15 Combine like terms: 43.874821937 + -15 = 28.874821937 x = 28.874821937 Simplifying x = 28.874821937

Subproblem 2

x + 15 = -43.874821937 Simplifying x + 15 = -43.874821937 Reorder the terms: 15 + x = -43.874821937 Solving 15 + x = -43.874821937 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-15' to each side of the equation. 15 + -15 + x = -43.874821937 + -15 Combine like terms: 15 + -15 = 0 0 + x = -43.874821937 + -15 x = -43.874821937 + -15 Combine like terms: -43.874821937 + -15 = -58.874821937 x = -58.874821937 Simplifying x = -58.874821937

Solution

The solution to the problem is based on the solutions from the subproblems. x = {28.874821937, -58.874821937}

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