Question

(4+i)(8+i)

Answer 1

i as in imaginary number or a variable?

Answer 2

32+8i+4i-1=31+12i
if i is the imaginary number sqrt(-1)

Answer 3

imaginary number

Answer 4

it is an imaginary number

Answer 5

(4)(8) + (4)(i) + (8)(i) + (i^2)
= 12i + 31 *i^2 = -1

Answer 6

THAAAAANNKK YOUU

Answer 7

imaginary number

Answer 8

(-9+8i)-(-5-3i)