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Simplifying
9w2 + -28 = 0
Reorder the terms:
-28 + 9w2 = 0
Solving
-28 + 9w2 = 0
Solving for variable 'w'.
Move all terms containing w to the left, all other terms to the right.
Add '28' to each side of the equation.
-28 + 28 + 9w2 = 0 + 28
Combine like terms: -28 + 28 = 0
0 + 9w2 = 0 + 28
9w2 = 0 + 28
Combine like terms: 0 + 28 = 28
9w2 = 28
Divide each side by '9'.
w2 = 3.111111111
Simplifying
w2 = 3.111111111
Take the square root of each side:
w = {-1.763834207, 1.763834207}
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