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Simplifying 4x2 + 21 + 20 = 0 Reorder the terms: 21 + 20 + 4x2 = 0 Combine like terms: 21 + 20 = 41 41 + 4x2 = 0 Solving 41 + 4x2 = 0 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-41' to each side of the equation. 41 + -41 + 4x2 = 0 + -41 Combine like terms: 41 + -41 = 0 0 + 4x2 = 0 + -41 4x2 = 0 + -41 Combine like terms: 0 + -41 = -41 4x2 = -41 Divide each side by '4'. x2 = -10.25 Simplifying x2 = -10.25 Reorder the terms: 10.25 + x2 = -10.25 + 10.25 Combine like terms: -10.25 + 10.25 = 0.00 10.25 + x2 = 0.00 The solution to this equation could not be determined.
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