15000=-0.02x^2+0.4x+17

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Solution for 15000=-0.02x^2+0.4x+17 equation:


Simplifying
15000 = -0.02x2 + 0.4x + 17

Reorder the terms:
15000 = 17 + 0.4x + -0.02x2

Solving
15000 = 17 + 0.4x + -0.02x2

Solving for variable 'x'.

Combine like terms: 15000 + -17 = 14983
14983 + -0.4x + 0.02x2 = 17 + 0.4x + -0.02x2 + -17 + -0.4x + 0.02x2

Reorder the terms:
14983 + -0.4x + 0.02x2 = 17 + -17 + 0.4x + -0.4x + -0.02x2 + 0.02x2

Combine like terms: 17 + -17 = 0
14983 + -0.4x + 0.02x2 = 0 + 0.4x + -0.4x + -0.02x2 + 0.02x2
14983 + -0.4x + 0.02x2 = 0.4x + -0.4x + -0.02x2 + 0.02x2

Combine like terms: 0.4x + -0.4x = 0.0
14983 + -0.4x + 0.02x2 = 0.0 + -0.02x2 + 0.02x2
14983 + -0.4x + 0.02x2 = -0.02x2 + 0.02x2

Combine like terms: -0.02x2 + 0.02x2 = 0.00
14983 + -0.4x + 0.02x2 = 0.00

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

Divide each side by '0.02'.
749150 + -20x + x2 = 0

Move the constant term to the right:

Add '-749150' to each side of the equation.
749150 + -20x + -749150 + x2 = 0 + -749150

Reorder the terms:
749150 + -749150 + -20x + x2 = 0 + -749150

Combine like terms: 749150 + -749150 = 0
0 + -20x + x2 = 0 + -749150
-20x + x2 = 0 + -749150

Combine like terms: 0 + -749150 = -749150
-20x + x2 = -749150

The x term is -20x.  Take half its coefficient (-10).
Square it (100) and add it to both sides.

Add '100' to each side of the equation.
-20x + 100 + x2 = -749150 + 100

Reorder the terms:
100 + -20x + x2 = -749150 + 100

Combine like terms: -749150 + 100 = -749050
100 + -20x + x2 = -749050

Factor a perfect square on the left side:
(x + -10)(x + -10) = -749050

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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