Question

give me answer correctly.​

Answer 1

Answer:

${(40 + 1)}^{3} = ({40})^{3} + 3 \times {(40)}^{2} + 3 \times 40 + 1 \\ \\ = 64000 + 4800 + 120 + 1 = 68921$

Answer 2

Answer:

(40+1)3= (40)3 +3*(40)2*1 +3*40*(1)2 +(1)3

6400 +480 + 120 + 1

68921