Question

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

Answer 1

36

Explanation:

`i=√(-1)\to i^2=(√(-1))^2=-1\\\\-12i*3i=(-12)(3)i^2=(-36)(-1)=36`

Answer 2

36

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