Question

1*) Dada a função quadrática f(x)=3x+5x+2 determine
A)f(0)
B)f(-2)
C) f (2/3)

Answer 1

f(0)= 3•0 + 5•0 + 2= 2
f(-2)= 3•(-2) + 5•(-2) + 2= -14
f(2/3)= 3•2/3 + 5•2/3 + 2= 6/3 + 10/3 + 2= 6/3 + 10/3 + 6/3= 22/3

Answer 2

3x+5x+2
3x+5x=2
8x=2
X=2/8