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Simplifying X2 + -9x + 400 = 0 Reorder the terms: 400 + X2 + -9x = 0 Solving 400 + X2 + -9x = 0 Solving for variable 'X'. Move all terms containing X to the left, all other terms to the right. Add '-400' to each side of the equation. 400 + X2 + -400 + -9x = 0 + -400 Reorder the terms: 400 + -400 + X2 + -9x = 0 + -400 Combine like terms: 400 + -400 = 0 0 + X2 + -9x = 0 + -400 X2 + -9x = 0 + -400 Combine like terms: 0 + -400 = -400 X2 + -9x = -400 Add '9x' to each side of the equation. X2 + -9x + 9x = -400 + 9x Combine like terms: -9x + 9x = 0 X2 + 0 = -400 + 9x X2 = -400 + 9x Simplifying X2 = -400 + 9x Reorder the terms: 400 + X2 + -9x = -400 + 9x + 400 + -9x Reorder the terms: 400 + X2 + -9x = -400 + 400 + 9x + -9x Combine like terms: -400 + 400 = 0 400 + X2 + -9x = 0 + 9x + -9x 400 + X2 + -9x = 9x + -9x Combine like terms: 9x + -9x = 0 400 + X2 + -9x = 0 The solution to this equation could not be determined.
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