3w^2-7w+120=0

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Solution for 3w^2-7w+120=0 equation:


Simplifying
3w2 + -7w + 120 = 0

Reorder the terms:
120 + -7w + 3w2 = 0

Solving
120 + -7w + 3w2 = 0

Solving for variable 'w'.

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

Divide each side by '3'.
40 + -2.333333333w + w2 = 0

Move the constant term to the right:

Add '-40' to each side of the equation.
40 + -2.333333333w + -40 + w2 = 0 + -40

Reorder the terms:
40 + -40 + -2.333333333w + w2 = 0 + -40

Combine like terms: 40 + -40 = 0
0 + -2.333333333w + w2 = 0 + -40
-2.333333333w + w2 = 0 + -40

Combine like terms: 0 + -40 = -40
-2.333333333w + w2 = -40

The w term is -2.333333333w.  Take half its coefficient (-1.166666667).
Square it (1.361111112) and add it to both sides.

Add '1.361111112' to each side of the equation.
-2.333333333w + 1.361111112 + w2 = -40 + 1.361111112

Reorder the terms:
1.361111112 + -2.333333333w + w2 = -40 + 1.361111112

Combine like terms: -40 + 1.361111112 = -38.638888888
1.361111112 + -2.333333333w + w2 = -38.638888888

Factor a perfect square on the left side:
(w + -1.166666667)(w + -1.166666667) = -38.638888888

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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