SOLVING+RADICAL+EQUATIONS+OPERATIONS+WITH+COMPLEX+NUMBERS

 Complex numbers- is a number system that includes the imaginary number **//i//**.
 * __Complex numbers: __**

 **__Equality of complex numbers: __**  a+bi=c+di if and only if a=c and b=d

 **__Sum of complex numbers: __**  (a+bi)+(c+di)=(a+c)+(b+d)i  **__Product of complex numbers: __**  (a+bi)(c+di)=(ac-bd)+(ad+bc)i  **  <span style="FONT-SIZE: 14pt; LINE-HEIGHT: 115%; FONT-FAMILY: 'Arial','sans-serif'"> <span style="FONT-SIZE: 16pt; LINE-HEIGHT: 115%; FONT-FAMILY: 'Arial','sans-serif'"> <span style="FONT-SIZE: 16pt; LINE-HEIGHT: 115%; FONT-FAMILY: 'Arial','sans-serif'">
 * <span style="FONT-SIZE: 16pt; LINE-HEIGHT: 115%; FONT-FAMILY: 'Arial','sans-serif'">Example: **
 * <span style="FONT-SIZE: 16pt; LINE-HEIGHT: 115%; FONT-FAMILY: 'Arial','sans-serif'">(3+4i)(5+2i) **
 * <span style="FONT-SIZE: 16pt; LINE-HEIGHT: 115%; FONT-FAMILY: 'Arial','sans-serif'">(3+4i)(5+2i)=15+20i+6i+8i^2 **
 * <span style="FONT-SIZE: 16pt; LINE-HEIGHT: 115%; FONT-FAMILY: 'Arial','sans-serif'">=15+26i+8(-1) **
 * <span style="FONT-SIZE: 16pt; LINE-HEIGHT: 115%; FONT-FAMILY: 'Arial','sans-serif'">=7+26i Answer