grid 1- 4xsquared plus 40x plus 100

grid 2 xsquared

grid 3 xsquared plus 40x plus 400

1) how many meters longer is the side length of grid 3 than the side length of grid 2

2) for what value of x is the area of grid 1 equal to the combined area of grid 2 and grid 3

3) the length of grid1 is 10 meters longer than the side length of grid 3. what is the total area of 3 grids?