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(1) ( +15) () - 15). (ii) (-5 + 3 i...
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(1) ( +15) () - 15). (ii) (-5 + 3 i).
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( f(x)^{2} ) ( =(-5)^{2}+(3 i)^{2}+2 x-5+3 i ) ( =25+9 i^{12}-30 i ) ( =16-30 i )
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