Please help me this is my first assignment in math

If f(x)=-x^2+6x-1 and g(x)=3x^2-4x-1,find(f+g)(x)

Pls brainliest will be awarded if answer is correct

Prism m and pyramid n have the same base area and the same height. cylinder p and prism q have the same height and the same base perimeter. cone z has the same base area as cylinder y, but its height is three times the height of cylinder y. the figures and have the same volume.