2. Find all numbers z such that Az3 + Bz² + Cz = D -3 -5 a. A [4] B =[₁₁1] c = L-₁₁ ย -11] A = 11 3 B = 1 1 -2 31 c=² C 4 3 = 5 [ ²] D = 5 D=1₁₁21

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