Question

f(x) = 2x ^ 2 + x. a) f (2) б) f (8) f(-1) в) f (10)

Answer 1

f (x) = 2x^2+x+c

F (x) = 2x^3/3+x^2/2+c=1

-c=2x^3/3+x^2/2-1

-c=2*1^3/3+1/2-1

c=-2/3-1/2+1

c=-1/6

Ответ: (2x^3/3+x^2/2-1/6)