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Simplifying
-2y2 + 8 + 54 = 0
Reorder the terms:
8 + 54 + -2y2 = 0
Combine like terms: 8 + 54 = 62
62 + -2y2 = 0
Solving
62 + -2y2 = 0
Solving for variable 'y'.
Move all terms containing y to the left, all other terms to the right.
Add '-62' to each side of the equation.
62 + -62 + -2y2 = 0 + -62
Combine like terms: 62 + -62 = 0
0 + -2y2 = 0 + -62
-2y2 = 0 + -62
Combine like terms: 0 + -62 = -62
-2y2 = -62
Divide each side by '-2'.
y2 = 31
Simplifying
y2 = 31
Take the square root of each side:
y = {-5.567764363, 5.567764363}
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