Re-typed maths problem

Dan

This is probably basic but I cant get my head around it (d^2 y/dt^2)+5(dy/dt)+6y = te^(-2t) Solve using complementary function/particular integral approach. Use substitution y = z(t)e^(-2t) to simplify the equation. Integrate the resulting equation once with respect to t. The final first order equation for z may be solved using the CF/PI approach. Any help would be massively appreciated.

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