Review Methods of Solving Quadratic Equations

Which method uses $\left(\frac{b}{2}\right)^2$  ?

• Factoring

• Square root method

• Quadratic formula

• Completing the square

Tags

CCSS.HSA-REI.B.4B

Which two methods requires the quadratic equation to be in standard form before you can begin solving?

• Factoring

• Square root method

• Quadratic formula

• Completing the square

Tags

CCSS.HSA-REI.B.4B

Without simplifying any quadratic equation, which quadratic equation is ready to solve using completing the square?

•  $-x^2+4x=3$  

•  $8x^2-x=90$  

•  $x^2=40$  

•  $x^2-5x=25$  

Tags

CCSS.HSA-REI.B.4B

When solving for x-intercepts, if we take the square root of a positive real number we get _____ solution(s).

• one

• two

• three

• four

Tags

CCSS.HSA-REI.B.4B

When solving a quadratic equation, when do you use the plus or minus (±) symbol?

• After taking the square root of both sides

• When you add $\left(\frac{b}{2}\right)^2$ to both sides

• After simplifying "a" to 1

• After setting the equation equal to zero

Tags

CCSS.HSA-REI.B.4B

 $y=ax^2+bx+c$  

When a quadratic equation is in standard form, what does c represent?

• horizontal shift

• vertical stretch or compression

• x-intercept

• y-intercept

Tags

CCSS.HSF-IF.C.7A

When completing the square, how do you figure out what to add to both sides before factoring?

• Guess & Check

•  $\left(\frac{b}{2}\right)^2$  

•  $a\cdot c$  

• Use your lucky number so that the problem magically works only for you.  

Tags

CCSS.HSA-REI.B.4B

Solve x² + 13x + 12 = 0 by factoring.

• x = -12, -1

• x = 12, 1

• x = 13, 1

• x = -13, -1

Tags

CCSS.HSA-REI.B.4B

Solve the equation by completing the square: x² - 8x = 20

• x = 10 and x = -2

• x = -10 and x = -2

• x = 10 and x = 2

Tags

CCSS.HSA-REI.B.4B

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