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Simplifying 3x2 + 4x + -3 = x2 + -21 + 4x Reorder the terms: -3 + 4x + 3x2 = x2 + -21 + 4x Reorder the terms: -3 + 4x + 3x2 = -21 + 4x + x2 Add '-4x' to each side of the equation. -3 + 4x + -4x + 3x2 = -21 + 4x + -4x + x2 Combine like terms: 4x + -4x = 0 -3 + 0 + 3x2 = -21 + 4x + -4x + x2 -3 + 3x2 = -21 + 4x + -4x + x2 Combine like terms: 4x + -4x = 0 -3 + 3x2 = -21 + 0 + x2 -3 + 3x2 = -21 + x2 Solving -3 + 3x2 = -21 + x2 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1x2' to each side of the equation. -3 + 3x2 + -1x2 = -21 + x2 + -1x2 Combine like terms: 3x2 + -1x2 = 2x2 -3 + 2x2 = -21 + x2 + -1x2 Combine like terms: x2 + -1x2 = 0 -3 + 2x2 = -21 + 0 -3 + 2x2 = -21 Add '3' to each side of the equation. -3 + 3 + 2x2 = -21 + 3 Combine like terms: -3 + 3 = 0 0 + 2x2 = -21 + 3 2x2 = -21 + 3 Combine like terms: -21 + 3 = -18 2x2 = -18 Divide each side by '2'. x2 = -9 Simplifying x2 = -9 Reorder the terms: 9 + x2 = -9 + 9 Combine like terms: -9 + 9 = 0 9 + x2 = 0 The solution to this equation could not be determined.
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