Question

$$x^{3}-2Px^{2}-2x^{2}+5Px+6x-P+R-6$$

Evaluate

$x^{3}-2Px^{2}-2x^{2}+5Px+6x+R-P-6$

Differentiate w.r.t. x

$3x^{2}-4Px-4x+5P+6$