What is the discriminant of the quadratic equation 0 = –x2 4x – 2?

Step-by-step explanation:

Given is a quadratic equation of the form

WE know that for any quadratic equation of the form

the discriminant would be

The discriminant determines the nature of roots of the quadratic equation, namely, real, rational or equal roots.

Here we have for the given equation

discriminant =

Thus we have discriminant as positive but not perfect square

Hence roots would be distinct, irrational and real.

51

step-by-step explanation:

73-22=51 the   mass number minus the amount of protons gives you the amount of neutrons

see attached

step-by-step explanation:

given the function as;

write the equation replacing f(x) with y

form   and fill a table containing values of y with corresponding values of x

you can take a range for   values of x as -3≤x≤3

solving for x=-3

for x=-2

repeat the same procedure to get the values of y for the remaining ,x=-1 to x=3

plot the values of y against values   of x and obtain the following graph