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Simplifying Y3 + -4y2 + -21y = 0 Reorder the terms: Y3 + -21y + -4y2 = 0 Solving Y3 + -21y + -4y2 = 0 Solving for variable 'Y'. Move all terms containing Y to the left, all other terms to the right. Add '21y' to each side of the equation. Y3 + -21y + 21y + -4y2 = 0 + 21y Combine like terms: -21y + 21y = 0 Y3 + 0 + -4y2 = 0 + 21y Y3 + -4y2 = 0 + 21y Remove the zero: Y3 + -4y2 = 21y Add '4y2' to each side of the equation. Y3 + -4y2 + 4y2 = 21y + 4y2 Combine like terms: -4y2 + 4y2 = 0 Y3 + 0 = 21y + 4y2 Y3 = 21y + 4y2 Simplifying Y3 = 21y + 4y2 Reorder the terms: Y3 + -21y + -4y2 = 21y + -21y + 4y2 + -4y2 Combine like terms: 21y + -21y = 0 Y3 + -21y + -4y2 = 0 + 4y2 + -4y2 Y3 + -21y + -4y2 = 4y2 + -4y2 Combine like terms: 4y2 + -4y2 = 0 Y3 + -21y + -4y2 = 0 The solution to this equation could not be determined.
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