Which expressions are equivalent to (c^2-9)(c+3). Multiple Select
a)(c-3)(c+3)(c+3)
b)(c^3-27)
c)((c)^2-(3)^2)(c+3)
d)(c+3)^2 (c-3)
e)(c-3)^3
f)(c-3)^2 (c+3)

Can someone answer these problems for me

Giving 100 points asap bev has to cut her grandma's grass this weekend and wants to know exactly how much area she will be cutting. calculate the area of the polygon. be sure to show all your work and explain your answer.

Given f(x)=2x^2-8x+6 and g(x)=3x-1 find f(x) +g(x) a. 2x^2+5x+5 b.2x^2-11x+7 c. 2x^2-5x+5 d.2x^2-5x-5