Question

Cum se rezolva f:R-R,f(x)=x(2x+3)+2(x-6)

Answer 1

f(1) = 1(2x1+3)+2(1-6) = 5-10 = -5 => f(1) = -5 => A(1;-5)
f(2) = 2(2x2+3) + 2(2-6) = 14-8 = 6 => f(2) = 6 => B(2;6)

Apoi se deseneaza graficul ;)