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Simplifying 4x2 + -20 + 21 = 0 Reorder the terms: -20 + 21 + 4x2 = 0 Combine like terms: -20 + 21 = 1 1 + 4x2 = 0 Solving 1 + 4x2 = 0 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + 4x2 = 0 + -1 Combine like terms: 1 + -1 = 0 0 + 4x2 = 0 + -1 4x2 = 0 + -1 Combine like terms: 0 + -1 = -1 4x2 = -1 Divide each side by '4'. x2 = -0.25 Simplifying x2 = -0.25 Reorder the terms: 0.25 + x2 = -0.25 + 0.25 Combine like terms: -0.25 + 0.25 = 0.00 0.25 + x2 = 0.00 The solution to this equation could not be determined.
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