Solve Equations and Inequalities Quadratic

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

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

• 11

• 44

• 121

• 144

Find the value of x in the quadratic equation x² – 144 = 0.

• 12

• -12

• 16

• -16

Given the quadratic equation x² – 8x + 7, what is the sum of its roots?

Hint: (-b/a)

• 8

• -8

• 7

• -7

For what values of a will make the quadratic equation ax² + bx + x = 0 be unreal?

• 1

• 2

• 3

• 0

Which of the equations below is NOT a quadratic equation?

• 7x² + 8x – 5 = 0

• 4x³ – 2x + 5 = 0

• -3x² + 44x + 10 = 0

• 9x² = 0

A quadratic equation is an equation on a degree of _____.

• 1

• 2

• 3

• 4

Joshua is trying to solve the quadratic equation x² – 25 by extracting the roots and he got positive 5 as one of the two roots. What is the other root?

• 5

• -5

• 15

• -25

Given the quadratic equation x² + 7x + 12, what are its factors?

• (x + 2)(x + 6)

• (x + 3)(x + 4)  

• (x + 12)(x + 1)

•  (x – 4)(x – 3)