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Simplifying (y2 + -7)(9y2 + -4y + 3) = 0 Reorder the terms: (-7 + y2)(9y2 + -4y + 3) = 0 Reorder the terms: (-7 + y2)(3 + -4y + 9y2) = 0 Multiply (-7 + y2) * (3 + -4y + 9y2) (-7(3 + -4y + 9y2) + y2(3 + -4y + 9y2)) = 0 ((3 * -7 + -4y * -7 + 9y2 * -7) + y2(3 + -4y + 9y2)) = 0 ((-21 + 28y + -63y2) + y2(3 + -4y + 9y2)) = 0 (-21 + 28y + -63y2 + (3 * y2 + -4y * y2 + 9y2 * y2)) = 0 (-21 + 28y + -63y2 + (3y2 + -4y3 + 9y4)) = 0 Combine like terms: -63y2 + 3y2 = -60y2 (-21 + 28y + -60y2 + -4y3 + 9y4) = 0 Solving -21 + 28y + -60y2 + -4y3 + 9y4 = 0 Solving for variable 'y'. The solution to this equation could not be determined.
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