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Simplifying 4u2 + 84 = 0 Reorder the terms: 84 + 4u2 = 0 Solving 84 + 4u2 = 0 Solving for variable 'u'. Move all terms containing u to the left, all other terms to the right. Add '-84' to each side of the equation. 84 + -84 + 4u2 = 0 + -84 Combine like terms: 84 + -84 = 0 0 + 4u2 = 0 + -84 4u2 = 0 + -84 Combine like terms: 0 + -84 = -84 4u2 = -84 Divide each side by '4'. u2 = -21 Simplifying u2 = -21 Reorder the terms: 21 + u2 = -21 + 21 Combine like terms: -21 + 21 = 0 21 + u2 = 0 The solution to this equation could not be determined.
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