Question

Evaluate the function for x=m/4 f(x)=8x^2-4x

Answer 1

`Subtitute\ x=(m)/(4)\ to\ f(x)=8x^2-4x:\\\\f\left((m)/(4)\right)=8\left((m)/(4)\right)^2-4\left((m)/(4)\right)=8\cdot(m^2)/(16)-4\cdot(m)/(4)\\\\\boxed{f\left((m)/(4)\right)=(m^2)/(2)-m=(m^2-2m)/(2)}`