0.7x^2-28x+12000=

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Solution for 0.7x^2-28x+12000= equation:


Simplifying
0.7x2 + -28x + 12000 = 0

Reorder the terms:
12000 + -28x + 0.7x2 = 0

Solving
12000 + -28x + 0.7x2 = 0

Solving for variable 'x'.

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

Divide each side by '0.7'.
17142.85714 + -40x + x2 = 0

Move the constant term to the right:

Add '-17142.85714' to each side of the equation.
17142.85714 + -40x + -17142.85714 + x2 = 0 + -17142.85714

Reorder the terms:
17142.85714 + -17142.85714 + -40x + x2 = 0 + -17142.85714

Combine like terms: 17142.85714 + -17142.85714 = 0.00000
0.00000 + -40x + x2 = 0 + -17142.85714
-40x + x2 = 0 + -17142.85714

Combine like terms: 0 + -17142.85714 = -17142.85714
-40x + x2 = -17142.85714

The x term is -40x.  Take half its coefficient (-20).
Square it (400) and add it to both sides.

Add '400' to each side of the equation.
-40x + 400 + x2 = -17142.85714 + 400

Reorder the terms:
400 + -40x + x2 = -17142.85714 + 400

Combine like terms: -17142.85714 + 400 = -16742.85714
400 + -40x + x2 = -16742.85714

Factor a perfect square on the left side:
(x + -20)(x + -20) = -16742.85714

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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