Multiply the following and simplify.
$(5-i)\left(12\right)$

• A. $60+12i$
• B. $60+12i$
• C. $5-12i$
• D. $60i-12$

Answer: (B)

Verified step by step guidance

1. Identify the expression to multiply: \(\left(5 - i\right) \times 12\).
2. Apply the distributive property by multiplying each term inside the parentheses by 12: \(5 \times 12\) and \(-i \times 12\).
3. Calculate each product separately: \(5 \times 12 = 60\) and \(-i \times 12 = -12i\).
4. Combine the results to write the expression as a sum: \$60 - 12i$.
5. Since there are no like terms to combine further, the expression is simplified as \$60 - 12i$.