Given the functions: f(x)=x³ +9x 8(x)=√√√7x h(x)=5x+4 Evaluate the function (hof)(x) for x = -2. Write your answer in exact simplified form. Se (h of)(-2) is Undefined x

The rate of change of an autocatalytic chemical reaction is kQxkx2 where Q is the amount of the original substance, x is the amount of substance formed, and k is a constant of proportionality. Factor the expression.

Rewrite f(x)=4x28x+1 in the f(x)=a(xh)2+k form by completing the square.