Question

Dada a função f(x)= 5x+2
Calcule:
A=f(0)+f(1)+f(2)-f(3)-f(4)
B=f(-2)-f(-3)+f(4)
C=f(0).f(1).f(2)/f(3).f(4)

Answer 1

5 X + 2 =  

f(0) = 5.0 + 2 = 2
f(1) = 5.1 + 2 = 7
f(2) =  5. 2 + 2 = 12 
f(3) =  5. 3 + 2 = 17 
f(4) =  5. 4 + 2 = 22     
a) 2+7+12- 17-22 = -12  
b) f(-2) = 5. (-2) + 2 = -10 + 2 = -8 
    f(-3) =  5. (-3) + 2 =  -15 + 2 = -13 
    f(4)  =  5.(4) + 2 = 22      
-8-(-13)+ 22 = 
-8+13+22 =
5+22= 27  
c) 2.7.12.17.22 = 62.832