Find the product of

Mathematics
Tutor: None Selected Time limit: 1 Day

(7k + 1)^3

a) 343k^3 + 147k^2 +21k + 1

b) 343k^3 + 1

c) 343k^3 + 294k^2 + 21k + 1

d) 343k^3 + 98^2 + 14k +1

May 12th, 2015

(7k + 1)^3 = (7k)^3+3*1*(7k)^2+3*7k*1^2+1^3 = 343k^3+147k^2+21k+1

a) 343k^3 + 147k^2 +21k + 1

May 12th, 2015

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