Question

multiply. write the answer in standard form. 3i(-5 + i) = \square

Explanation:

Step1: Distribute $3i$ to each term

$3i(-5) + 3i(i)$

Step2: Calculate each product

$-15i + 3i^2$

Step3: Substitute $i^2=-1$

$-15i + 3(-1) = -15i -3$

Step4: Rearrange to standard form

$-3 -15i$

Answer:

$-3 - 15i$