y^2 - 18y + 51.84 = 0
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Answer:
y=9y=9
Step-by-step explanation:
{y}^{2} - 9y - 9y + 81 = 0y
2
−9y−9y+81=0
y(y - 9) - 9(y - 9) = 0y(y−9)−9(y−9)=0
(y - 9)(y - 9) = 0(y−9)(y−9)=0
y = 9y=9
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