which expression is equivalent to $(4.5j + 6)(-2.3j)$?\n$-24.15j^{2}$\n$-10.35j^{2}-13.8j$\n$10.5j^{2}-13.8j$…

which expression is equivalent to $(4.5j + 6)(-2.3j)$?\n$-24.15j^{2}$\n$-10.35j^{2}-13.8j$\n$10.5j^{2}-13.8j$\n$2.2j^{3}+6$

which expression is equivalent to $(4.5j + 6)(-2.3j)$?\n$-24.15j^{2}$\n$-10.35j^{2}-13.8j$\n$10.5j^{2}-13.8j$\n$2.2j^{3}+6$

Answer

Explanation:

Step1: Use distributive property

$$(4.5j + 6)(-2.3j)=4.5j\times(-2.3j)+6\times(-2.3j)$$

Step2: Calculate each product

For (4.5j\times(-2.3j)), using the rule (a\times b\times j\times j=(a\times b)j^{2}), we have (4.5\times(-2.3)j^{2}=-10.35j^{2}). For (6\times(-2.3j)), we get (-13.8j).

Step3: Combine the results

Combining (-10.35j^{2}) and (-13.8j) gives (-10.35j^{2}-13.8j)

Answer:

(-10.35j^{2}-13.8j) (the second option)