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Simplifying X3 + -8x2 + 9x + -72 = 0 Reorder the terms: -72 + X3 + 9x + -8x2 = 0 Solving -72 + X3 + 9x + -8x2 = 0 Solving for variable 'X'. Move all terms containing X to the left, all other terms to the right. Add '72' to each side of the equation. -72 + X3 + 9x + 72 + -8x2 = 0 + 72 Reorder the terms: -72 + 72 + X3 + 9x + -8x2 = 0 + 72 Combine like terms: -72 + 72 = 0 0 + X3 + 9x + -8x2 = 0 + 72 X3 + 9x + -8x2 = 0 + 72 Combine like terms: 0 + 72 = 72 X3 + 9x + -8x2 = 72 Add '-9x' to each side of the equation. X3 + 9x + -9x + -8x2 = 72 + -9x Combine like terms: 9x + -9x = 0 X3 + 0 + -8x2 = 72 + -9x X3 + -8x2 = 72 + -9x Add '8x2' to each side of the equation. X3 + -8x2 + 8x2 = 72 + -9x + 8x2 Combine like terms: -8x2 + 8x2 = 0 X3 + 0 = 72 + -9x + 8x2 X3 = 72 + -9x + 8x2 Simplifying X3 = 72 + -9x + 8x2 Reorder the terms: -72 + X3 + 9x + -8x2 = 72 + -9x + 8x2 + -72 + 9x + -8x2 Reorder the terms: -72 + X3 + 9x + -8x2 = 72 + -72 + -9x + 9x + 8x2 + -8x2 Combine like terms: 72 + -72 = 0 -72 + X3 + 9x + -8x2 = 0 + -9x + 9x + 8x2 + -8x2 -72 + X3 + 9x + -8x2 = -9x + 9x + 8x2 + -8x2 Combine like terms: -9x + 9x = 0 -72 + X3 + 9x + -8x2 = 0 + 8x2 + -8x2 -72 + X3 + 9x + -8x2 = 8x2 + -8x2 Combine like terms: 8x2 + -8x2 = 0 -72 + X3 + 9x + -8x2 = 0 The solution to this equation could not be determined.
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