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Simplifying (y2 + 12y + 20)(y2 + -16) + 455 = 0 Reorder the terms: (20 + 12y + y2)(y2 + -16) + 455 = 0 Reorder the terms: (20 + 12y + y2)(-16 + y2) + 455 = 0 Multiply (20 + 12y + y2) * (-16 + y2) (20(-16 + y2) + 12y * (-16 + y2) + y2(-16 + y2)) + 455 = 0 ((-16 * 20 + y2 * 20) + 12y * (-16 + y2) + y2(-16 + y2)) + 455 = 0 ((-320 + 20y2) + 12y * (-16 + y2) + y2(-16 + y2)) + 455 = 0 (-320 + 20y2 + (-16 * 12y + y2 * 12y) + y2(-16 + y2)) + 455 = 0 (-320 + 20y2 + (-192y + 12y3) + y2(-16 + y2)) + 455 = 0 (-320 + 20y2 + -192y + 12y3 + (-16 * y2 + y2 * y2)) + 455 = 0 (-320 + 20y2 + -192y + 12y3 + (-16y2 + y4)) + 455 = 0 Reorder the terms: (-320 + -192y + 20y2 + -16y2 + 12y3 + y4) + 455 = 0 Combine like terms: 20y2 + -16y2 = 4y2 (-320 + -192y + 4y2 + 12y3 + y4) + 455 = 0 Reorder the terms: -320 + 455 + -192y + 4y2 + 12y3 + y4 = 0 Combine like terms: -320 + 455 = 135 135 + -192y + 4y2 + 12y3 + y4 = 0 Solving 135 + -192y + 4y2 + 12y3 + y4 = 0 Solving for variable 'y'. The solution to this equation could not be determined.
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