Question

sendo f(x)=3x-4, quanto é 2.f(3)-f(-4)+5.f(0)?

Answer 1

f(3)=3*3-4
f(3)=9-4
f(3)=5

f(-4)=3*(-4)-4
f(-4)=-12-4
f(-4)=-16

f(0)=-4

2f(3)-f(-4)+5f(0)
2*5-(-16)+5*(-4)
10+16-20
26-20
6