Add. left parenthesis negative 6 plus 4 i right parenthesisplusleft parenthesis 5 plus 8 i right parenthesis Question content area bottom Part 1 left parenthesis negative 6 plus 4 i right parenthesisplusleft parenthesis 5 plus 8 i right parenthesisequals enter your response here (Type your answer in the form aplusbi. Use integers or fractions for any numbers in the expression