[填空题]
A section of the curv/ ip9y ix9bby+dqy0 )u nbyeue*4 oqb61tm/*w 0tsv; ve with equation y=2(x-3)(x+8) is shown.
1. Write an integral for the shaded area A.
[Area A] = $\int_{a}^{b} 2(x-3)(x+8) \mathrm{d} x$; a= ,b= .
2. Find the area of A is units$^2$ .
3. Find the area of B is units$^2$ .