Learn how to determine the roots of an equation using the quadratic formula

The video tutorial covers the quadratic formula, starting with a recap of previous lessons. It explains how to identify coefficients A, B, and C in quadratic equations, followed by finding the discriminant. The tutorial then demonstrates using the quadratic formula to solve equations and discusses square numbers to finalize the answer.

What is the first step in solving a quadratic equation using the quadratic formula?

• Calculate the square root of the equation

• Identify the coefficients A, B, and C

• Find the value of X directly

• Multiply all terms by 2

What is the formula for the discriminant in a quadratic equation?

• B^2 - 4AC

• B^2 + 4AC

• 2A + B - C

• A^2 - 4BC

In the example given, what is the value of the discriminant when A=2, B=11, and C=1?

• 121

• 8

• 0

• 113

What is the next step after finding the discriminant in the quadratic formula?

• Subtract the discriminant from A

• Use the discriminant in the quadratic formula

• Add the discriminant to B

• Divide the discriminant by 2

Which of the following is a square number?

• 113

• 81

• 50

• 30