Question

(5k+1)*2divite /5= ans.....​

Answer 1

Answer:

( 5k+1)^2

(a+b)^2= a^2+2ab+b^2

so,

a= 5k , b=1

(5k)^2+2(5k)(1)+(1)^2

25 (k)^2+10k +1