How do you multiply #(z+8)^2#?
1 Answer
Mar 9, 2017
Explanation:
Each term in the second bracket must be multiplied by each term in the first bracket.
Since
#(z+8)^2=(z+8)(z+8)#
#rArr(color(red)(z+8))(z+8)#
#=color(red)(z)(z+8)color(red)(+8)(z+8)# distribute the brackets.
#=z^2+8z+8z+64# collect like terms.
#=z^2+16z+64#
