Question

dada a função f: R R por f(x) = x2 + 2x, determine o valor de f(2) + f(3) - f(1)​

Answer 1

Resposta:

f(x)=x2+x2

f(2)= 2.2+2.2

f(2)= 4+4

f(2)= 8

f(3)= 3.3+3.3

f(3)= 9+9

f(3)= 18

f(1)= 1.2+1.2

f(1)= 2+2

f(1)= 4

8+18-4= 22