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

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


Simplifying
(7w2 + -3w + -4) + (2w2 + -1w + 6) = 0

Reorder the terms:
(-4 + -3w + 7w2) + (2w2 + -1w + 6) = 0

Remove parenthesis around (-4 + -3w + 7w2)
-4 + -3w + 7w2 + (2w2 + -1w + 6) = 0

Reorder the terms:
-4 + -3w + 7w2 + (6 + -1w + 2w2) = 0

Remove parenthesis around (6 + -1w + 2w2)
-4 + -3w + 7w2 + 6 + -1w + 2w2 = 0

Reorder the terms:
-4 + 6 + -3w + -1w + 7w2 + 2w2 = 0

Combine like terms: -4 + 6 = 2
2 + -3w + -1w + 7w2 + 2w2 = 0

Combine like terms: -3w + -1w = -4w
2 + -4w + 7w2 + 2w2 = 0

Combine like terms: 7w2 + 2w2 = 9w2
2 + -4w + 9w2 = 0

Solving
2 + -4w + 9w2 = 0

Solving for variable 'w'.

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

Divide each side by '9'.
0.2222222222 + -0.4444444444w + w2 = 0

Move the constant term to the right:

Add '-0.2222222222' to each side of the equation.
0.2222222222 + -0.4444444444w + -0.2222222222 + w2 = 0 + -0.2222222222

Reorder the terms:
0.2222222222 + -0.2222222222 + -0.4444444444w + w2 = 0 + -0.2222222222

Combine like terms: 0.2222222222 + -0.2222222222 = 0.0000000000
0.0000000000 + -0.4444444444w + w2 = 0 + -0.2222222222
-0.4444444444w + w2 = 0 + -0.2222222222

Combine like terms: 0 + -0.2222222222 = -0.2222222222
-0.4444444444w + w2 = -0.2222222222

The w term is -0.4444444444w.  Take half its coefficient (-0.2222222222).
Square it (0.04938271604) and add it to both sides.

Add '0.04938271604' to each side of the equation.
-0.4444444444w + 0.04938271604 + w2 = -0.2222222222 + 0.04938271604

Reorder the terms:
0.04938271604 + -0.4444444444w + w2 = -0.2222222222 + 0.04938271604

Combine like terms: -0.2222222222 + 0.04938271604 = -0.17283950616
0.04938271604 + -0.4444444444w + w2 = -0.17283950616

Factor a perfect square on the left side:
(w + -0.2222222222)(w + -0.2222222222) = -0.17283950616

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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