Question

b + 1 ka whole cube​

Answer 1

here is ure answer.!

(a+b)^3=a^3+b^3+3ab(a+b)

so,

a=b and b=1

(b+1)^3=b^3+1^3+3×b×1(b+1)

=b^3+1^3+3b(b+1)

hope its help.!