Question

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5. Expand (K + 4)³

Answer 1

Answer:

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Step-by-step explanation:

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Answer 2

Answer:

We know that,

(x + y)³ = x³ + y³ + 3xy(x + y)

Put x = K and y = 4

(K + 4)³ = K³ + 4³ + 3(K)(4)(K + 4)

(K + 4)³ = K³ + 64 + 12k² + 48k