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Simplifying 4x * x + 21 = 18 Multiply x * x 4x2 + 21 = 18 Reorder the terms: 21 + 4x2 = 18 Solving 21 + 4x2 = 18 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-21' to each side of the equation. 21 + -21 + 4x2 = 18 + -21 Combine like terms: 21 + -21 = 0 0 + 4x2 = 18 + -21 4x2 = 18 + -21 Combine like terms: 18 + -21 = -3 4x2 = -3 Divide each side by '4'. x2 = -0.75 Simplifying x2 = -0.75 Reorder the terms: 0.75 + x2 = -0.75 + 0.75 Combine like terms: -0.75 + 0.75 = 0.00 0.75 + x2 = 0.00 The solution to this equation could not be determined.
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