Question

please answer fast of 9 question​

Answer 1

Answer:

73³= (70+3)³

(a+b)³=a³ + 3 a²b + 3 ab² + b³

(70+3)³ = 70³ + 3×70²×3 + 3×70×3² + 3³

= 343000 + 44100 + 1890 + 27

= 389017

Answer 2

Step-by-step explanation:

attached above

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