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Simplifying
0 = 2w2 + -2 + -84
Reorder the terms:
0 = -2 + -84 + 2w2
Combine like terms: -2 + -84 = -86
0 = -86 + 2w2
Solving
0 = -86 + 2w2
Solving for variable 'w'.
Move all terms containing w to the left, all other terms to the right.
Add '-2w2' to each side of the equation.
0 + -2w2 = -86 + 2w2 + -2w2
Remove the zero:
-2w2 = -86 + 2w2 + -2w2
Combine like terms: 2w2 + -2w2 = 0
-2w2 = -86 + 0
-2w2 = -86
Divide each side by '-2'.
w2 = 43
Simplifying
w2 = 43
Take the square root of each side:
w = {-6.557438524, 6.557438524}
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