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Simplifying (y + -7)(y + -7)(y + 9) = 0 Reorder the terms: (-7 + y)(y + -7)(y + 9) = 0 Reorder the terms: (-7 + y)(-7 + y)(y + 9) = 0 Reorder the terms: (-7 + y)(-7 + y)(9 + y) = 0 Multiply (-7 + y) * (-7 + y) (-7(-7 + y) + y(-7 + y))(9 + y) = 0 ((-7 * -7 + y * -7) + y(-7 + y))(9 + y) = 0 ((49 + -7y) + y(-7 + y))(9 + y) = 0 (49 + -7y + (-7 * y + y * y))(9 + y) = 0 (49 + -7y + (-7y + y2))(9 + y) = 0 Combine like terms: -7y + -7y = -14y (49 + -14y + y2)(9 + y) = 0 Multiply (49 + -14y + y2) * (9 + y) (49(9 + y) + -14y * (9 + y) + y2(9 + y)) = 0 ((9 * 49 + y * 49) + -14y * (9 + y) + y2(9 + y)) = 0 ((441 + 49y) + -14y * (9 + y) + y2(9 + y)) = 0 (441 + 49y + (9 * -14y + y * -14y) + y2(9 + y)) = 0 (441 + 49y + (-126y + -14y2) + y2(9 + y)) = 0 (441 + 49y + -126y + -14y2 + (9 * y2 + y * y2)) = 0 (441 + 49y + -126y + -14y2 + (9y2 + y3)) = 0 Combine like terms: 49y + -126y = -77y (441 + -77y + -14y2 + 9y2 + y3) = 0 Combine like terms: -14y2 + 9y2 = -5y2 (441 + -77y + -5y2 + y3) = 0 Solving 441 + -77y + -5y2 + y3 = 0 Solving for variable 'y'. The solution to this equation could not be determined.
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