Need help please. Thank you.

Question

1. Determine whether the function has a maximum or minimum. State that value.
f(x)= -2x^2-4x
2. Determine what c would in order to complete the square.
x^2-5x+c
3. Solve the quadratic by factoring.
3x^2-16x+5=0
4. Solve the quadratic by factoring.
x^2+x-48=0
5. Describe the transformation if f(x)=1/3(x+2)^2+5

Answer 1

#1. x^2 has negative coefficient. downward
#2. (5/2)^2
#3. hint: 15+1 = 16
#4. does not factor. Did you mean +2x?
#5. shift left 2, scale vertically by 1/3, shift up 5

Answer 2

Thanks, Steve! Yes on #4 its suppose to be +2x so my bad.