# Appendix A - A.4 - Quadratic Equations - Exercises - Page 550: 36

$y = 0~~$ or $~~y=2$

#### Work Step by Step

We can rearrange and then use the GCF to factor the equation: $9y^2 = 18y$ $9y^2 - 18y = 0$ $(9y)(y-2) = 0$ $9y = 0~~$ or $~~y-2 = 0$ $y = 0~~$ or $~~y=2$

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