Find the area of the regular polygon

What are two numbers that add up to -9 and multiply to -10 best answer gets branliest and 100 extra points

Find the directions in which the function increases and decreases most rapidly at upper p 0p0. then find the derivatives of the function in these directions. f(x,y)equals=x squared plus xy plus y squaredx2+xy+y2, upper p 0p0left parenthesis 1 comma negative 4 right parenthesis

How do you write 600 as a product of its prime factors (index! )