A 9th order, linear, homogeneous, constant coefficient differential equation has a characteristic equation which factors as follows. (r² + 6r+18)²r²(r + 3)³ = 0 Write the nine fundamental solutions to the differential equation as functions of the variable t. Y1 Y4= Y7 = Y2 = Y5 = Y8 = Y3 Y6 Y9 = = = (You can enter your answers in any order.)

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