Question

What is the product of the complex numbers below? (4 - 21)(1 + 7) O A. 18 - 307 - OB B. -10 - 301 O C. -10 + 261 + O + D. 18 + 261

Answer 1

Given:

`(4-2i)(1+7i)`

To find: The product of two complex numbers:

Step-by-step explanation:

On expansion we get,

`(4-2i)(1+7i)=4+28i-2i-14(i^2)`

As we know,

`i^2=-1`

So, we w