Step-by-step explanation:
Here, we'll need to multiply these two values together. I'll use the expansion formula, which goes as follows:


Lets apply this to the following equation:



- Remove parenthesis and add.

Answer:
x^2+10x+21
$65.91 should be the account balance at the end of the month
by dy/dx, we'll be assuming that "y" is encapsulating a function, a function in terms of "x".

Answer:
six
Step-by-step explanation:
6