Question

Si f (x) = x² - 1, g (x) = 2x + 3 y h(x) = 2/(x+1)
Hallar:
a) f (x) + g (x)
c) f (x) · g (x)
d) f(x) / g(x)

Answer 1

a) f (x) + g (x)

x² - 1+2x + 3

x²+2x+2

x(x+2)+2

c) f (x) · g (x)

(x²-1)(2x+3)

2x³+3x²-2x-3

x(2x²+3x-2)-3

d) f(x) / g(x)

x²-1

---------

2x+3