Answer:
C. 9 + 50i
Step-by-step explanation:
To find an expression equivalent to 6(4+7i) - (15-8i), we will simplify it step by step.
We can start by distributing and then combining like terms.
[tex]\begin{aligned} 6(4+7i) - (15-8i) &= 6 \cdot 4 + 6 \cdot 7i - (15 - 8i) \\\\&= 24 + 42i - 15 + 8i \\\\&= (24 - 15) + (42i + 8i) \\\\&= 9 + 50i\end{aligned}[/tex]
So, the expression equivalent to 6(4+7i) - (15-8i) is:
C. 9 + 50i
