Check/correct my work ! working with polynomials and stuff.

1. multiply and simplify
(b+2)(b+2)
b^2+4

2. multiply and simplify
(x+3)(x+3)
x^2+9

3. simplify
(3xy^3)(2x^3y)
6x^4y^4

Abucket of paint has spilled on a tile floor. the paint flow can be expressed with the function p(t) = 6(t), where t represents time in minutes and p represents how far the paint is spreading. the flowing paint is creating a circular pattern on the tile. the area of the pattern can be expressed as a(p) = 3.14(p)^2 part a: find the area of the circle of spilled paint as a function of time, or a[p(t)]. show your work. part b: how large is the area of spilled paint after 8 minutes? you may use 3.14 to approximate pi in this problem.