Answer:
Step-by-step explanation:
Blank 1: 584,000
Blank 2: 1,369,600
I think you just multiply by the number of years.
2x² +21x-61 = (x+7)²
expand
2x² + 21x - 61 = x² + 14x +49
move everything to one side
x² + 7x - 12 = 0
use quadratic formula
plug in the values
solve
56m^2
see the steps from the pic