Hey there!



First, you need to open the parentheses. Notice how there is a subtraction sign before the second parentheses. You will need to multiply everything in the second parentheses by -1.

because when two negative numbers are multiplied, the product will be positive.
Now you need to combine like-terms.

You will be left with -49 and 4i. The last step is to add them.


Hope this helps!
