5w^2-9w+15=0

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Solution for 5w^2-9w+15=0 equation:


Simplifying
5w2 + -9w + 15 = 0

Reorder the terms:
15 + -9w + 5w2 = 0

Solving
15 + -9w + 5w2 = 0

Solving for variable 'w'.

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

Divide each side by '5'.
3 + -1.8w + w2 = 0

Move the constant term to the right:

Add '-3' to each side of the equation.
3 + -1.8w + -3 + w2 = 0 + -3

Reorder the terms:
3 + -3 + -1.8w + w2 = 0 + -3

Combine like terms: 3 + -3 = 0
0 + -1.8w + w2 = 0 + -3
-1.8w + w2 = 0 + -3

Combine like terms: 0 + -3 = -3
-1.8w + w2 = -3

The w term is -1.8w.  Take half its coefficient (-0.9).
Square it (0.81) and add it to both sides.

Add '0.81' to each side of the equation.
-1.8w + 0.81 + w2 = -3 + 0.81

Reorder the terms:
0.81 + -1.8w + w2 = -3 + 0.81

Combine like terms: -3 + 0.81 = -2.19
0.81 + -1.8w + w2 = -2.19

Factor a perfect square on the left side:
(w + -0.9)(w + -0.9) = -2.19

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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