Help me please and sorry about the points it doesn’t let me do more than that

8000 + 8800 + 8000 + 8 million + 80 trillion + another a katrillion equals

In the polynomial below, what number should replace the question mark to produce a difference of squares? x2 + ? x - 36

Tyler enjoys the fish so much that after his birthday his family decides to take him to a famous aquarium a tank at the aquarium is similar to his tank with the scale factor of 8 how many times greater is the volume of the tank at the aquarium than the volume of tyler tank