Question

si f(x)= x-10/4 y g(x)=4x+5 encontrar:
a.-3f(x)+2g(x)
b.-f2(x)-g3(x)
c.-f(g(2))
d.-g(f(10))

Answer 1

a) -3(x-10/4)+2(4x+5)

-3x-30/4+8x+10

5x+5/2

b) -2(x-10/4)-3(4x+5)

-2x+5-12x-15

-14x-10

c) -(4x+5)+10/4

-4x-5+5/2

-4x-5/2

d) -4(x-10/4)-5

-4x+10-5

-4x+5