(-3w^2-9w+8)+(2w^2-7w+8)-(-5w^2-3w+5)=

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Solution for (-3w^2-9w+8)+(2w^2-7w+8)-(-5w^2-3w+5)= equation:


Simplifying
(-3w2 + -9w + 8) + (2w2 + -7w + 8) + -1(-5w2 + -3w + 5) = 0

Reorder the terms:
(8 + -9w + -3w2) + (2w2 + -7w + 8) + -1(-5w2 + -3w + 5) = 0

Remove parenthesis around (8 + -9w + -3w2)
8 + -9w + -3w2 + (2w2 + -7w + 8) + -1(-5w2 + -3w + 5) = 0

Reorder the terms:
8 + -9w + -3w2 + (8 + -7w + 2w2) + -1(-5w2 + -3w + 5) = 0

Remove parenthesis around (8 + -7w + 2w2)
8 + -9w + -3w2 + 8 + -7w + 2w2 + -1(-5w2 + -3w + 5) = 0

Reorder the terms:
8 + -9w + -3w2 + 8 + -7w + 2w2 + -1(5 + -3w + -5w2) = 0
8 + -9w + -3w2 + 8 + -7w + 2w2 + (5 * -1 + -3w * -1 + -5w2 * -1) = 0
8 + -9w + -3w2 + 8 + -7w + 2w2 + (-5 + 3w + 5w2) = 0

Reorder the terms:
8 + 8 + -5 + -9w + -7w + 3w + -3w2 + 2w2 + 5w2 = 0

Combine like terms: 8 + 8 = 16
16 + -5 + -9w + -7w + 3w + -3w2 + 2w2 + 5w2 = 0

Combine like terms: 16 + -5 = 11
11 + -9w + -7w + 3w + -3w2 + 2w2 + 5w2 = 0

Combine like terms: -9w + -7w = -16w
11 + -16w + 3w + -3w2 + 2w2 + 5w2 = 0

Combine like terms: -16w + 3w = -13w
11 + -13w + -3w2 + 2w2 + 5w2 = 0

Combine like terms: -3w2 + 2w2 = -1w2
11 + -13w + -1w2 + 5w2 = 0

Combine like terms: -1w2 + 5w2 = 4w2
11 + -13w + 4w2 = 0

Solving
11 + -13w + 4w2 = 0

Solving for variable 'w'.

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

Divide each side by '4'.
2.75 + -3.25w + w2 = 0

Move the constant term to the right:

Add '-2.75' to each side of the equation.
2.75 + -3.25w + -2.75 + w2 = 0 + -2.75

Reorder the terms:
2.75 + -2.75 + -3.25w + w2 = 0 + -2.75

Combine like terms: 2.75 + -2.75 = 0.00
0.00 + -3.25w + w2 = 0 + -2.75
-3.25w + w2 = 0 + -2.75

Combine like terms: 0 + -2.75 = -2.75
-3.25w + w2 = -2.75

The w term is -3.25w.  Take half its coefficient (-1.625).
Square it (2.640625) and add it to both sides.

Add '2.640625' to each side of the equation.
-3.25w + 2.640625 + w2 = -2.75 + 2.640625

Reorder the terms:
2.640625 + -3.25w + w2 = -2.75 + 2.640625

Combine like terms: -2.75 + 2.640625 = -0.109375
2.640625 + -3.25w + w2 = -0.109375

Factor a perfect square on the left side:
(w + -1.625)(w + -1.625) = -0.109375

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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