(3w^2-w+4)+(5w^2+6w+7)=

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Solution for (3w^2-w+4)+(5w^2+6w+7)= equation:


Simplifying
(3w2 + -1w + 4) + (5w2 + 6w + 7) = 0

Reorder the terms:
(4 + -1w + 3w2) + (5w2 + 6w + 7) = 0

Remove parenthesis around (4 + -1w + 3w2)
4 + -1w + 3w2 + (5w2 + 6w + 7) = 0

Reorder the terms:
4 + -1w + 3w2 + (7 + 6w + 5w2) = 0

Remove parenthesis around (7 + 6w + 5w2)
4 + -1w + 3w2 + 7 + 6w + 5w2 = 0

Reorder the terms:
4 + 7 + -1w + 6w + 3w2 + 5w2 = 0

Combine like terms: 4 + 7 = 11
11 + -1w + 6w + 3w2 + 5w2 = 0

Combine like terms: -1w + 6w = 5w
11 + 5w + 3w2 + 5w2 = 0

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

Solving
11 + 5w + 8w2 = 0

Solving for variable 'w'.

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

Divide each side by '8'.
1.375 + 0.625w + w2 = 0

Move the constant term to the right:

Add '-1.375' to each side of the equation.
1.375 + 0.625w + -1.375 + w2 = 0 + -1.375

Reorder the terms:
1.375 + -1.375 + 0.625w + w2 = 0 + -1.375

Combine like terms: 1.375 + -1.375 = 0.000
0.000 + 0.625w + w2 = 0 + -1.375
0.625w + w2 = 0 + -1.375

Combine like terms: 0 + -1.375 = -1.375
0.625w + w2 = -1.375

The w term is 0.625w.  Take half its coefficient (0.3125).
Square it (0.09765625) and add it to both sides.

Add '0.09765625' to each side of the equation.
0.625w + 0.09765625 + w2 = -1.375 + 0.09765625

Reorder the terms:
0.09765625 + 0.625w + w2 = -1.375 + 0.09765625

Combine like terms: -1.375 + 0.09765625 = -1.27734375
0.09765625 + 0.625w + w2 = -1.27734375

Factor a perfect square on the left side:
(w + 0.3125)(w + 0.3125) = -1.27734375

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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