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Simplifying 4r2 + 16 = 0 Reorder the terms: 16 + 4r2 = 0 Solving 16 + 4r2 = 0 Solving for variable 'r'. Move all terms containing r to the left, all other terms to the right. Add '-16' to each side of the equation. 16 + -16 + 4r2 = 0 + -16 Combine like terms: 16 + -16 = 0 0 + 4r2 = 0 + -16 4r2 = 0 + -16 Combine like terms: 0 + -16 = -16 4r2 = -16 Divide each side by '4'. r2 = -4 Simplifying r2 = -4 Reorder the terms: 4 + r2 = -4 + 4 Combine like terms: -4 + 4 = 0 4 + r2 = 0 The solution to this equation could not be determined.
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