10w^2=9w-15

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Solution for 10w^2=9w-15 equation:


Simplifying
10w2 = 9w + -15

Reorder the terms:
10w2 = -15 + 9w

Solving
10w2 = -15 + 9w

Solving for variable 'w'.

Reorder the terms:
15 + -9w + 10w2 = -15 + 9w + 15 + -9w

Reorder the terms:
15 + -9w + 10w2 = -15 + 15 + 9w + -9w

Combine like terms: -15 + 15 = 0
15 + -9w + 10w2 = 0 + 9w + -9w
15 + -9w + 10w2 = 9w + -9w

Combine like terms: 9w + -9w = 0
15 + -9w + 10w2 = 0

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

Divide each side by '10'.
1.5 + -0.9w + w2 = 0

Move the constant term to the right:

Add '-1.5' to each side of the equation.
1.5 + -0.9w + -1.5 + w2 = 0 + -1.5

Reorder the terms:
1.5 + -1.5 + -0.9w + w2 = 0 + -1.5

Combine like terms: 1.5 + -1.5 = 0.0
0.0 + -0.9w + w2 = 0 + -1.5
-0.9w + w2 = 0 + -1.5

Combine like terms: 0 + -1.5 = -1.5
-0.9w + w2 = -1.5

The w term is -0.9w.  Take half its coefficient (-0.45).
Square it (0.2025) and add it to both sides.

Add '0.2025' to each side of the equation.
-0.9w + 0.2025 + w2 = -1.5 + 0.2025

Reorder the terms:
0.2025 + -0.9w + w2 = -1.5 + 0.2025

Combine like terms: -1.5 + 0.2025 = -1.2975
0.2025 + -0.9w + w2 = -1.2975

Factor a perfect square on the left side:
(w + -0.45)(w + -0.45) = -1.2975

Can't calculate square root of the right side.

The solution to this equation could not be determined.

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