3dx2d2y+dxdy−14y=0The characteristic equation is as follows
3k2+k−14=0Roots
k1=−7/3,k2=2General solution of DE
y(x)=C1e−7/3x+C2e2xUsing initial condition, we obtain
y(0)=C1+C2=1y′(0)=3−7C1+2C2=−1Roots:
C1=9/13,C2=4/13 Finally, the particular solution of DE
y(x)=9/13e−7/3x+4/13e2x
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