f(x) = x^5 + 8x^3 - 2x + 4
f(x) = 5 - 7x
f(x) = 7/2x^2 + 5x^4
f(x) = x^2 + 5x
f(x) = 2x^2 + 8x^2 - 2
f(x) = (3x+2)^2
f(x) = 3x^2
f(x) = (2x+3)(x+1)
f(x) = x^-4 + 5√x
f(x) = 4t^3 - 3t^2 + 2t +1
f´(x) = -7
f´(x) = 20x^3 - 7/x^3
f´(x) = 6x
f´(x) = 18x + 12
f´(x) = 4x + 5
f´(x) = 5x^4 + 24x^2 - 2
f´(x) = 2x + 5
f´(x) = -4/x^5 + 5/2x^0.5
f´(x) = 12x^2 - 6x + 2
f´(x) = 4x + 8
