for the discriminant is
When
your quadratic has two distinct real roots
your quadratic has one repeated real root
your quadratic has no real roots
for then and
so
finish this and make your conclusion.
Do you know that the discriminant of is .
was this supposed to be "+ 1"? I will assume f(x)= 3x^2+ 2x+ 1.2: suppose f(x)=3x^2+2x1
Solve 3x^2+ 2x+ 1= 7a. find x if f(x)=7
Those are where f(x)= 0. Solve 3x^2+ 2x+ 1= 0.b. find the x-intercepts
That is just 3(-4)^2+ 2(-4)+ 1.c. find f(-4)
Assuming you mean f(2), it is just 3(2)^2+ 2(2)+ 1.d.find (2)