Question

Se f(x)=√x-4 -3x, calcule f(4), f(8), f(13)

Answer 1

f(4)=√4-4-3.4=2-4-12=-14
f(8)=√8-4-3.8= 2√4-4-24=26√4
f(13)=√13-4-3.13=3√4-4-39=42√4

Espero ter ajudado e acertado!!