Math 9

Which of the following is a quadratic equation?

• 𝑥² - 2x + 7       

•  2𝑥³ + 𝑥² – 5 = 0       

• 3𝑥 + 5 = 0

• 2𝑥 + 𝑥² – 5 = 5

Given (𝑥 – 1)² + 3 = 2𝑥 + 1, find the value of the constant term.

• -3

• -1

• 1

• 3

Which is the correct substitution values of a, b and c in the quadratic formula of the equation

 ?

• 
• 
• 
• 

What are the roots of 𝑥² – 144 = 0?

• ± 24    

• ± 11    

• ± 12

• ± 13

How many real number solutions does the equation 𝑥² = 𝑐, where 𝑐 > 0 have?

• One

• Two

• Three

• No Solution

Which of the following is the practical way to solve 𝑥² – 25 = 0?

• Factoring

• Extracting the square root

• Quadratic Formula

• Completing the square

The expression  is a perfect square trinomial if a and c are perfect square and b is twice the _____ of square roots of a and c.

• sum     

• product

• factor

• constant

What is the square root of 81?

• 16

• 9

• 8

• 7

Which of the following quadratic equation will become a perfect square trinomial if 36 will be added to both side of equation?

• x² - 12x =0

• x² - 6x = 0

• x² - 9x = 0

• 6x² + 24x = 0

What is the solution set of 6x² - 24x + 24 = 0?

• {2,1}

• {2,2}

• {3,4}

• {2,6}