Which of the following is a quadratic equation?

What is the standard form of the equation 4x = 3x² – 2?

Which of the following is NOT a method of solving quadratic equations?

In any quadratic equations, how many possible roots are there?

How many possible real roots are therein the equation x² = k, where k < 0?

Which of the following is the quadratic formula?

What property states that “If the product of two numbers is zero, then either of the two is equal to zero or both numbers are equal to zero.”? 

is the most appropriate method to use in solving the equation x² = k, where k>0?

In completing the square, what happens to the equation when both sides are added by square of one-half of the coefficient of x?