content area top Part 1 Add. left parenthesis negative 5 plus 3 i right parenthesisplusleft parenthesis 4 plus 6 i right parenthesis Question content area bottom Part 1 left parenthesis negative 5 plus 3 i right parenthesisplusleft parenthesis 4 plus 6 i right parenthesisequals enter your response here (Type your answer in the form aplusbi. Use integers or fractions for any numbers in the expression.)