(10pt each) = 1, a2 (1) Solve the relation an + 5an-1 + 6an−2 = 0 for n ≥ 3 with a₁ (2) Solve the relation an +5an−1+ 6an−2 = 3n² for n ≥ 3 with a₁ = = 1, a2 1 and express an by n. 1 and express an by n. =