Question

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

Answer 1

$f(x)=3x^2+2x+1$

$f(2)=3\cdot2^2+2\cdot2+1=3\cdot4+4+1=12+5=17$

$f(3)=3\cdot3^2+2\cdot3+1=3\cdot9+6+1=27+7=34$

$f(1)=3\cdot1^2+2\cdot1+1=3+2+1=6$

$f(2)+f(3)-f(1)=17+34-6=45$.

Answer 2

23- 145 +.mol 01.258+f(2) 65 +f (3)