Question

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

Answer 1

Use Foil

Answer 2

i did...i got 9-9i....but its wrong

Answer 3

i think the result will b 39+9i

Answer 4

(8-5i)(3+3i)
=24+24i-15i+15
=39+9i

Answer 5

should i explain the process

Answer 6

yes

Answer 7

shouldnt it be negitive 15

Answer 8

ok i m doing now

Answer 9

i think u know \[i ^{2}=-1\]

Answer 10

\[-5i*3i=-15i^{2} = -15*(-1)=15\]

Answer 11

and \[-15i ^{2}=-15 \times (-1)=15\]

Answer 12

so its like that number is being multilplied by -1

Answer 13

ya