Question

5/2 i(−4−3i) [express this in a+ib]

Answer 1

Answer:

$\frac{15}{2} - 10i$

Step-by-step explanation:

$\frac{5}{2} i( - 4 - 3i) \\ \frac{5}{2} i \times ( - 4) - ( \frac{5}{2} i \times 3i) \\ \\ - 10i - ( \frac{15}{2} {i}^{2} ) \\ - 10i - ( \frac{15}{2} ( - 1)) \\ - 10i + \frac{15}{2 } \\ \frac{15}{2} - 10i$