Question

find the product of :(a+4)(a+4)(a^2+16)

Answer 1

hope it's ryt................

Answer 2

Hello,
(a+4)(a+4)(a²+16)
=(a+4)²(a²+16)
using (a+b)²=a²+2ab+b²:
=(a²+8a+16)(a²+16);
=a⁴+16a²+8a³+128a+16a²+256;
=a⁴+8a³+32a²+128a+256

bye :-)