Solving Quadratics Major Quizizz

What are the factors of the expression (x+3)(x-5)?

• (x+3)

• (x-5)

• x

• 3

• -5

• 0

• 3

• -4

• -3

• 4

If x = -1 and x = 5 are two solutions to a quadratic equation, then what could the equation be?

• Yes, Mary's work is correct because she solved the equations correctly

• Yes, Mary's work is correct because she applied the Zero Product Property correctly

• No, Mary's work is not correct because she didn't solve the equations correctly

• No, Mary's work is not correct because she misapplied the Zero Product Property

Complete the square for

x² - 14x + __

(type the missing value that goes in the blank)

The quadratic shown is going to be solved by completing the square, the first step is shown

Problem: x² + 6x = 5

Step 1: x² + 6x + ​ (a)   = ​ (b)  

What are the missing values?

• 9
• 14
• 6
• 5
• -6
• -9
• 3
• 8
• 12

What are the steps to solving this by completing the square?

a² + 10a + 21 = 0

• Rewrite the left hand side as a (binomial)²

• Subtract 21 from both sides of the equation

• Add 25 to both sides of the equation

• Subtract 5 from both sides of the equation

• Take the square root of both sides of the equation

Which words also mean the same thing as solutions?

• x intercepts

• roots

• zeros

• y intercepts

Determine the values of a, b, and c for the quadratic equation:

4x² – 8x = 3

• a = 4, b = -8, c = 3

• a = 4, b =-8, c =-3

• a = 4, b = 8, c = 3

• a = 4, b = 8, c = -3

​Complete the quadratic formula

Black question mark ​ (a)  

Blue question mark ​ (b)  

Red question mark ​ (c)