Question

Multiply and simplify the product. –12i × 3i Select the product. 36 -36 36i -36i

Answer 1

Answer:

36

Step-by-step explanation:

–12i × 3i

Multiply the numbers

-12*3 = -36

Multiply the imaginary number

i*i= i^2

We know i^2 = -1

-36 * -1 = 36

Answer 2

Answer:

36

Step-by-step explanation:

$i=\sqrt{-1}\to i^2=(\sqrt{-1})^2=-1\\\\-12i\times3i=(-12)(3)i^2=(-36)(-1)=36$