How do you simplify #(4-3i)(2+5i)# and write in a+bi form?
1 Answer
Apr 21, 2018
Explanation:
#•color(white)(x)i^2=(sqrt(-1))^2=-1#
#"expand factors using FOIL"#
#rArr8+20i-6i-15i^2#
#=23+14ilarrcolor(blue)"in standard form"#
