Let f(x)= 2x+5 and g(x)= x^2+2
a) Find function f(x)g(x) and simplify
b) Find d/dx (f(x)g(x))= d/dx (simplified form)... in other words find derivative of simplified form
c) Compare (b) to f'(x)g'(x)
these are the answers I got
a) 2x^3 +5x^2+4x+10
b) 6x^2+10x+4
c) 2x^3-x^2-6x+6
are they corect if not please show me how to get these correct thank you