(-3w^2+6w-5)+(-8w^2+7w+7)-(-5w^2+6w+8)=0

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Solution for (-3w^2+6w-5)+(-8w^2+7w+7)-(-5w^2+6w+8)=0 equation:


Simplifying
(-3w2 + 6w + -5) + (-8w2 + 7w + 7) + -1(-5w2 + 6w + 8) = 0

Reorder the terms:
(-5 + 6w + -3w2) + (-8w2 + 7w + 7) + -1(-5w2 + 6w + 8) = 0

Remove parenthesis around (-5 + 6w + -3w2)
-5 + 6w + -3w2 + (-8w2 + 7w + 7) + -1(-5w2 + 6w + 8) = 0

Reorder the terms:
-5 + 6w + -3w2 + (7 + 7w + -8w2) + -1(-5w2 + 6w + 8) = 0

Remove parenthesis around (7 + 7w + -8w2)
-5 + 6w + -3w2 + 7 + 7w + -8w2 + -1(-5w2 + 6w + 8) = 0

Reorder the terms:
-5 + 6w + -3w2 + 7 + 7w + -8w2 + -1(8 + 6w + -5w2) = 0
-5 + 6w + -3w2 + 7 + 7w + -8w2 + (8 * -1 + 6w * -1 + -5w2 * -1) = 0
-5 + 6w + -3w2 + 7 + 7w + -8w2 + (-8 + -6w + 5w2) = 0

Reorder the terms:
-5 + 7 + -8 + 6w + 7w + -6w + -3w2 + -8w2 + 5w2 = 0

Combine like terms: -5 + 7 = 2
2 + -8 + 6w + 7w + -6w + -3w2 + -8w2 + 5w2 = 0

Combine like terms: 2 + -8 = -6
-6 + 6w + 7w + -6w + -3w2 + -8w2 + 5w2 = 0

Combine like terms: 6w + 7w = 13w
-6 + 13w + -6w + -3w2 + -8w2 + 5w2 = 0

Combine like terms: 13w + -6w = 7w
-6 + 7w + -3w2 + -8w2 + 5w2 = 0

Combine like terms: -3w2 + -8w2 = -11w2
-6 + 7w + -11w2 + 5w2 = 0

Combine like terms: -11w2 + 5w2 = -6w2
-6 + 7w + -6w2 = 0

Solving
-6 + 7w + -6w2 = 0

Solving for variable 'w'.

Begin completing the square.  Divide all terms by
-6 the coefficient of the squared term: 

Divide each side by '-6'.
1 + -1.166666667w + w2 = 0

Move the constant term to the right:

Add '-1' to each side of the equation.
1 + -1.166666667w + -1 + w2 = 0 + -1

Reorder the terms:
1 + -1 + -1.166666667w + w2 = 0 + -1

Combine like terms: 1 + -1 = 0
0 + -1.166666667w + w2 = 0 + -1
-1.166666667w + w2 = 0 + -1

Combine like terms: 0 + -1 = -1
-1.166666667w + w2 = -1

The w term is -1.166666667w.  Take half its coefficient (-0.5833333335).
Square it (0.3402777780) and add it to both sides.

Add '0.3402777780' to each side of the equation.
-1.166666667w + 0.3402777780 + w2 = -1 + 0.3402777780

Reorder the terms:
0.3402777780 + -1.166666667w + w2 = -1 + 0.3402777780

Combine like terms: -1 + 0.3402777780 = -0.659722222
0.3402777780 + -1.166666667w + w2 = -0.659722222

Factor a perfect square on the left side:
(w + -0.5833333335)(w + -0.5833333335) = -0.659722222

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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