Browse · MATH Print → jmc algebra intermediate Problem The functions f(x)=x2−2x+m and g(x)=x2−2x+4m are evaluated when x=4. What is the value of m if 2f(4)=g(4)? Solution — click to reveal 2f(4)=g(4), so 2(16−8+m)=16−8+4m. Expanding the left-hand side gives 16+2m=8+4m, or 8=2m and m=4. Final answer 4 ← Previous problem Next problem →