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Simplifying X2 + -20x + -400 = -400 Reorder the terms: -400 + X2 + -20x = -400 Add '400' to each side of the equation. -400 + X2 + 400 + -20x = -400 + 400 Reorder the terms: -400 + 400 + X2 + -20x = -400 + 400 Combine like terms: -400 + 400 = 0 0 + X2 + -20x = -400 + 400 X2 + -20x = -400 + 400 Combine like terms: -400 + 400 = 0 X2 + -20x = 0 Solving X2 + -20x = 0 Solving for variable 'X'. Move all terms containing X to the left, all other terms to the right. Add '20x' to each side of the equation. X2 + -20x + 20x = 0 + 20x Combine like terms: -20x + 20x = 0 X2 + 0 = 0 + 20x X2 = 0 + 20x Remove the zero: X2 = 20x Simplifying X2 = 20x Combine like terms: 20x + -20x = 0 X2 + -20x = 0 The solution to this equation could not be determined.
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