2. 𝑦 = 3𝑥(𝑥 2 − 𝑥 + 1) ∙ (5𝑥 − 3) 𝑦 = (3𝑥 3 − 3𝑥 2 + 3𝑥) ∙ (5𝑥 − 3) 𝑦 = 15𝑥 4 − 24𝑥 3 + 24𝑥 2 − 9𝑥 𝑦 ′ = 4(15𝑥 3 ) − 3(24𝑥 2 ) + 2(24𝑥) − 9 𝑦 = (𝑥 + 5) ∙ (𝑥 3 − 1) ∙ (𝑥 2 − 𝑥 + 3) 𝑦 = (𝑥 4 + 5𝑥 3 − 𝑥 − 5) ∙ (𝑥 2 − 𝑥 + 3) 𝑦 = 𝑥 6 + 4𝑥 5 − 2𝑥 4 + 14𝑥 3 − 4𝑥 2 + 2𝑥 − 15 𝑦 ′ = 6𝑥 5 + 5(4𝑥 4 ) − 4(2𝑥 3 ) + 3(14𝑥 2 ) − 2(4𝑥) + 2 12. 𝑦 = 𝑎3𝑥+5 ∙ (𝑥 2 − 𝑥 + 1) 𝑦 ′ = (𝑎3𝑥+5 ∙ 3 ∙ 𝑙𝑛𝑎)(𝑥 2 − 𝑥 + 1) + (𝑎3𝑥+5 )(2𝑥 − 1) 𝑦 = 5𝑥+3 𝑦 ′ = (5𝑥+3 )𝑙𝑛5 ∙ 1 7. 𝑦 = √𝑥 2 + 5𝑥 − 4 𝑦′ = 1 2(√𝑥 2 + 5𝑥 − 4 ∙ (2𝑥 + 5) 3 𝑦 = √𝑥 2 − 5𝑥 1 𝑦′ = 3(𝑥 2 2 − 5𝑥)3 ∙ (2𝑥 − 5) 13. 𝑦 = ln (𝑥 + √𝑥 2 + 9) 𝑦′ = 𝑦′ = 𝑦′ = 1 ∙ (1 + 𝑥 + √𝑥 2 + 9 1 𝑥 + √𝑥 2 + 9 1 2√𝑥 2 + 9 ∙ 2𝑥) 𝑥 + (𝑥 + √𝑥 2 + 9)(√𝑥 2 + 9) (𝑥 + √𝑥 2 + 9)(√𝑥 2 + 9) + 𝑥(𝑥 + √𝑥 2 + 9) (𝑥 + √𝑥 2 + 9)2 (√𝑥 2 + 9) 𝑦′ = √𝑥 2 + 9 + 𝑥 (𝑥 + √𝑥 2 + 9)(√𝑥 2 + 9) 𝑦′ = 1 √𝑥 2 +9 3. 𝑦= 𝑦′ = 𝑥 2 − 3𝑥 + 4 3𝑥 − 4 (2𝑥 − 3)(3𝑥 − 4) − (𝑥 2 − 3𝑥 + 4)(3) (3𝑥 − 4)2 𝑦′ = 3𝑥 2 − 8𝑥 (3𝑥 − 4)2 3𝑥 2 − 6 𝑦= 2 𝑥 +𝑥+1 𝑦′ = (6𝑥)(𝑥 2 + 𝑥 + 1) − (3𝑥 2 − 6)(2𝑥 + 1) (𝑥 2 + 𝑥 + 1)2 3𝑥 2 + 18𝑥 + 6 𝑦 = 2 (𝑥 + 𝑥 + 1)2 ′ 8. 4 𝑦 = √𝑥 3 − 𝑥 + 3 𝑦′ = 1 ∗ 4 1 (𝑥 3 −𝑥+ 3 3)4 ∗ 3𝑥 2 − 1 3𝑥 2 − 1 𝑦′ = 3 4(𝑥 3 − 𝑥 + 3)4 3 𝑦 = √(𝑥 3 + 𝑥 2 − 7) 𝑦′ = 1 ∗ 3 1 (𝑥 3 𝑦′ = + 𝑥2 2 − 7)3 ∗ (3𝑥 2 + 2𝑥) (3𝑥 2 + 2𝑥) 2 3(𝑥 3 + 𝑥 2 − 7)3