Question

(a+b)(a+b)(a+b)(a+b)=

Answer 1

I think the answer would be a raise to the power of 4 + b raise to the power of 4

Answer 2

(a+b)(a+b)(a+b)(a+b)=(a+b)^4 
                               =(a^2 + 2ab + b^12)^2
                                =a^4 + 4*a^3 *b + 6* a^2 *b^2 + 4 *a* b^3 + b^4