Write the result of (4+9i)(7-4i) in a+bi form

ANSWER

EXPLANATION

The given complex number expression is:

We expand using the distributive property to get;

Recall that,

Our expression now simplifies to:

Step-by-step explanation:

Given the Complex numbers multiplication:

You need to follow these steps:

1. Apply Distributive property:

2. You need to remember that:

Then, you need to substitute :

3. Finally, add the like terms:

two data sets with the same median will not have the same varaibility

step-by-step explanation: