8000=-2w^2+12w-7

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Solution for 8000=-2w^2+12w-7 equation:


Simplifying
8000 = -2w2 + 12w + -7

Reorder the terms:
8000 = -7 + 12w + -2w2

Solving
8000 = -7 + 12w + -2w2

Solving for variable 'w'.

Combine like terms: 8000 + 7 = 8007
8007 + -12w + 2w2 = -7 + 12w + -2w2 + 7 + -12w + 2w2

Reorder the terms:
8007 + -12w + 2w2 = -7 + 7 + 12w + -12w + -2w2 + 2w2

Combine like terms: -7 + 7 = 0
8007 + -12w + 2w2 = 0 + 12w + -12w + -2w2 + 2w2
8007 + -12w + 2w2 = 12w + -12w + -2w2 + 2w2

Combine like terms: 12w + -12w = 0
8007 + -12w + 2w2 = 0 + -2w2 + 2w2
8007 + -12w + 2w2 = -2w2 + 2w2

Combine like terms: -2w2 + 2w2 = 0
8007 + -12w + 2w2 = 0

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

Divide each side by '2'.
4003.5 + -6w + w2 = 0

Move the constant term to the right:

Add '-4003.5' to each side of the equation.
4003.5 + -6w + -4003.5 + w2 = 0 + -4003.5

Reorder the terms:
4003.5 + -4003.5 + -6w + w2 = 0 + -4003.5

Combine like terms: 4003.5 + -4003.5 = 0.0
0.0 + -6w + w2 = 0 + -4003.5
-6w + w2 = 0 + -4003.5

Combine like terms: 0 + -4003.5 = -4003.5
-6w + w2 = -4003.5

The w term is -6w.  Take half its coefficient (-3).
Square it (9) and add it to both sides.

Add '9' to each side of the equation.
-6w + 9 + w2 = -4003.5 + 9

Reorder the terms:
9 + -6w + w2 = -4003.5 + 9

Combine like terms: -4003.5 + 9 = -3994.5
9 + -6w + w2 = -3994.5

Factor a perfect square on the left side:
(w + -3)(w + -3) = -3994.5

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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