find the value of x³-x²+x+46 if x=2+3i
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Answer:
[8-27¡+3(2)(3¡)]-(4-9+12¡)+(2+3¡)+46
=[8-27¡+18¡]-(-5+12¡)+2+3¡+46
=8-9¡+5-12¡+2+3¡+46
=61-18¡
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