Yo is all of these correct

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

Calculate the annual effective interest rate of a 12 % nominal annual interest rate compound monthly

Factor these polynomials and explain how 1. 12x - 3x^2 2. 20 - 240x^2