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18-11-2019
Mathematics

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(a+5)4 binomial theorem

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MathPhys MathPhys

18-11-2019

Answer:

a⁴ + 20a³ + 150a² + 500a + 625

Step-by-step explanation:

(a + 5)⁴

₄C₀ a⁴ 5⁰ + ₄C₁ a³ 5¹ + ₄C₂ a² 5² + ₄C₃ a¹ 5³ + ₄C₄ a⁰ 5⁴

a⁴ + 4 a³ 5 + 6 a² 25 + 4 a 125 + 625

a⁴ + 20a³ + 150a² + 500a + 625

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