#### Answer

Nonlinear.

#### Work Step by Step

The first term has $y$ multiplied by $y''$. This makes it so the equation doesn't fit the form $a_o(x)y^{(n)}+a_1(x)y^{(n-1)}+...+a_n(x)y=F(x)$ and makes the equation linear.

Published by
Pearson

ISBN 10:
0-32196-467-5

ISBN 13:
978-0-32196-467-0

Nonlinear.

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