So to find the area you should draw a line to make a right triangle then take the area of the 3 figures and add them together. See the picture.
Answer:
-2a^2+3a-6
Step-by-step explanation:
a^2+a-1-(3a^2-2a+5)
=a^2+a-1-3a^2+2a-5
=-2a^2+3a-6
Answer:
four hundred seven thousand two hundred nineteen
Step-by-step explanation:
Answer:
By definition it follows that

Step-by-step explanation:

by definition

Then it follows that

The other side is pretty much the same.