Evaluate the indicated function for fx x2 4 and gx x 3 f

Evaluate the indicated function for f(x) = x^2 + 4 and g(x) = x - 3. (fg)(5) (fg)(5) = Evaluate the function for f(x) = 4x^2 + 1 and g(x) = x - 3. (fg) (-4) (fg)(-4) =

Solution

       f(x)= x²+4                              g(x)=x-3

       (fg)(x)= f(x)*g(x) = (x²+4)(x-3)

12.   (fg)(5) = (5²+4)(5-3) = 29* 2=58

13. f(x)=4x²+1    g(x)= x-3

    (fg)(x) = (4x²+1)(x-3)

(fg)(-4) = (4(-4²)+1)(-4-3) = 65 *(-7) = - 455