How do you simplify #(2+i)(4+3i)#?
1 Answer
Nov 26, 2017
Explanation:
#•color(white)(x)i^2=(sqrt(-1))^2=-1#
#"expand using FOIL and simplify"#
#=8+6i+4i+3i^2#
#=5+10i#
#•color(white)(x)i^2=(sqrt(-1))^2=-1#
#"expand using FOIL and simplify"#
#=8+6i+4i+3i^2#
#=5+10i#