Question

si f(x)=2x+3 y g(x)=5x-4 entonces que seria f(g(-2x))?

Answer 1

f(x) = 2x + 3
g(x) = 5x - 4

Hallar:
f(g(- 2x))

g(- 2) = 5x - 4 = 5(- 2) - 4 = - 10 - 4 = - 14

f(- 14) = 2x + 3 = 2(- 14) + 3 = - 28 + 3 = - 25

f(g(- 2x)) = - 25