Question

X+2+4i: 11+(8x-y)i..

Answer 1

x + 2 + 4i / 11+(8x-y)i

(x+2+4i)·[11+(8x-y)i] = [ 11+(8x-y)i]*2

11x+8x*2·i - xy·i + 22+16x·i -2y·i +44·i + 32x·i*2 - 4y·i*2 = 121 + 22·(8x-y)·i + (8x·i - y·i)*2

11x+32x·(-1) + 8x*2·i -xy·i + 16x·i -2y·i
+44·i + 4y ·(-1) + 22 = 121+176x·i -22y·i + 64x*2·i*2 - 16xy·i*2 + y*2·i*2

- 21x + 8x*2·i-xy·i +16x·i -2y·i + 44·i -4y +22 = 121+ 176x·i -22y·i + 64x*2 · (-1) - 16xy·(-1) + y*2 ·(-1) agora é só acabar de resokver e organizar.