$\text { A function } y ( t ) \text { satisfies the differential equation } \frac { d y } { d t } = y ^ { 4 } - 9 y ^ { 3 } + 20 y ^ { 2 } \text {. }$

question 6

Short Answer

$\text { A function } y ( t ) \text { satisfies the differential equation } \frac { d y } { d t } = y ^ { 4 } - 9 y ^ { 3 } + 20 y ^ { 2 } \text {. }$ What are the constant solutions of the equation?

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