Perform indicated operation and simplify.
|
= (5 + 3(2i))(-8 + i) |
Always remove radicals first |
|
= (5 + 6i)(-8 + i) |
 |
|
= -40 + 5i - 48i + 6i2 |
Now Multiply using F O I L |
|
= -40 - 43i + 6(-1) |
i2 = -1 |
|
= -40 - 43i - 6 |
Simplify |
|
= -46 - 43i |
standard form: a + bi . |