Question

sendo f(x) =4x+1 e g(x)=-3x-1,calcule. a) f(2)+g(3)=. b) f(3)+g(2)=

Answer 1

$f(x) =4x+1 \\f(2)=4*2+1\\f(2)=8+1\\f(2)=9\\\\f(3)=4*3+1\\f(3)=12+1\\f(3)=13\\\\g(x)=-3x-1\\g(3)= -3*3-1\\g(3)=-9-1\\g(3)=-10\\\\g(2)=-3*2-1\\g(2)=-6-1\\g(2)=-7$

Assim:

a)

f(2)+g(3) = 9-10

f(2)+g(3) = -1

b)

f(3)+g(2)= 13-7

f(3)+g(2) = 6

Espero ter ajudado!