Question

Please please need help on these two

Answer 1

Answer:

( f + g ) (x) = $2 x^{2} + x - 4$

g(x) - f(x) = $x^{2} - 2 x - 4$

Step-by-step explanation:

1. f(x) = 4 x - 4 and g(x) = $2 x^{2} - 3 x$

( f + g ) (x) = f(x) + g(x)

                = $4 x - 4 + 2 x^{2} - 2 x$

                = $2 x^{2} + x -4$

   2.  g(x) = $x^{2} + 1$ and f(x) = 2 x + 5

g(x) - f(x) = $x^{2} + 1 - (2 x + 5)$

              = $x^{2} + 1 - 2 x - 5$

              = $x^{2} - 2 x - 4$