Solving Quadratic Equations and Inequalities

To complete the perfect square trinomial in the expression x²-22x+_____, we need to add

• 11

• 44

• 121

• 144

b²-4ac is called

• discrimination

• determinant

• discriminant

• none of these

Solve by the Extraction of Roots method: (x - 2) ² = 49

• 9 or -5

• ± 9

• ± 5

• ± 7

It is similar to quadratic equation, except instead of an equal sign there’s an inequality sign.

• Linear Inequality

• Quadratic Equation

• Quadratic Inequality

• Quadratic Function

Which of the following is NOT a method in solving a quadratic equation?

• Factoring

• Quadratic Formula

• Completing the Square

• Discriminant

If the discriminant is equal to 121, then the nature of the roots is?

• real, irrational and unequal

• imaginary

• real, rational and unequal

• real and equal

What is the value of b in the equation below?

• -4

• 2

• -2

• 4

• 4 and 4

• -4 and -4

• -4 and 4

• 0 and 4

• -2 and -4

• 2 and 4

• -2 and 4

• 2 and -4