multiply and simplify the product. -12i × 3i select the product. 36 -36 36i -36i done

Explanation:

Step1: Multiply the coefficients

Multiply - 12 and 3: $(-12)\times3=-36$.

Step2: Multiply the imaginary units

Multiply $i$ and $i$: $i\times i = i^{2}$. Since $i^{2}=-1$.

Step3: Combine the results

The product is $(-36)\times(-1) = 36$.

Answer:

36