0=-.01x^2+.29x+7.3

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Solution for 0=-.01x^2+.29x+7.3 equation:


Simplifying
0 = -0.01x2 + 0.29x + 7.3

Reorder the terms:
0 = 7.3 + 0.29x + -0.01x2

Solving
0 = 7.3 + 0.29x + -0.01x2

Solving for variable 'x'.

Combine like terms: 0 + -7.3 = -7.3
-7.3 + -0.29x + 0.01x2 = 7.3 + 0.29x + -0.01x2 + -7.3 + -0.29x + 0.01x2

Reorder the terms:
-7.3 + -0.29x + 0.01x2 = 7.3 + -7.3 + 0.29x + -0.29x + -0.01x2 + 0.01x2

Combine like terms: 7.3 + -7.3 = 0.0
-7.3 + -0.29x + 0.01x2 = 0.0 + 0.29x + -0.29x + -0.01x2 + 0.01x2
-7.3 + -0.29x + 0.01x2 = 0.29x + -0.29x + -0.01x2 + 0.01x2

Combine like terms: 0.29x + -0.29x = 0.00
-7.3 + -0.29x + 0.01x2 = 0.00 + -0.01x2 + 0.01x2
-7.3 + -0.29x + 0.01x2 = -0.01x2 + 0.01x2

Combine like terms: -0.01x2 + 0.01x2 = 0.00
-7.3 + -0.29x + 0.01x2 = 0.00

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

Divide each side by '0.01'.
-730 + -29x + x2 = 0

Move the constant term to the right:

Add '730' to each side of the equation.
-730 + -29x + 730 + x2 = 0 + 730

Reorder the terms:
-730 + 730 + -29x + x2 = 0 + 730

Combine like terms: -730 + 730 = 0
0 + -29x + x2 = 0 + 730
-29x + x2 = 0 + 730

Combine like terms: 0 + 730 = 730
-29x + x2 = 730

The x term is -29x.  Take half its coefficient (-14.5).
Square it (210.25) and add it to both sides.

Add '210.25' to each side of the equation.
-29x + 210.25 + x2 = 730 + 210.25

Reorder the terms:
210.25 + -29x + x2 = 730 + 210.25

Combine like terms: 730 + 210.25 = 940.25
210.25 + -29x + x2 = 940.25

Factor a perfect square on the left side:
(x + -14.5)(x + -14.5) = 940.25

Calculate the square root of the right side: 30.663496213

Break this problem into two subproblems by setting 
(x + -14.5) equal to 30.663496213 and -30.663496213.

Subproblem 1

x + -14.5 = 30.663496213 Simplifying x + -14.5 = 30.663496213 Reorder the terms: -14.5 + x = 30.663496213 Solving -14.5 + x = 30.663496213 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '14.5' to each side of the equation. -14.5 + 14.5 + x = 30.663496213 + 14.5 Combine like terms: -14.5 + 14.5 = 0.0 0.0 + x = 30.663496213 + 14.5 x = 30.663496213 + 14.5 Combine like terms: 30.663496213 + 14.5 = 45.163496213 x = 45.163496213 Simplifying x = 45.163496213

Subproblem 2

x + -14.5 = -30.663496213 Simplifying x + -14.5 = -30.663496213 Reorder the terms: -14.5 + x = -30.663496213 Solving -14.5 + x = -30.663496213 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '14.5' to each side of the equation. -14.5 + 14.5 + x = -30.663496213 + 14.5 Combine like terms: -14.5 + 14.5 = 0.0 0.0 + x = -30.663496213 + 14.5 x = -30.663496213 + 14.5 Combine like terms: -30.663496213 + 14.5 = -16.163496213 x = -16.163496213 Simplifying x = -16.163496213

Solution

The solution to the problem is based on the solutions from the subproblems. x = {45.163496213, -16.163496213}

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