Solving Quadratic Equations by Square Roots and Factoring and Completing the Square

Solve by ANY method you have learned: x² − 2x - 11=0

Tags

CCSS.HSA-REI.B.4B

What are some other names for the SOLUTIONS of a quadratic equation?

• y-intercepts

• roots

• x-intercepts

• zeros

Tags

CCSS.HSF-IF.C.7A

Which is the BEST method to use to solve this equation?

3a² = 27

• Square Root Method

• Factor Method

• Complete the Square

• Quadratic Formula

Tags

CCSS.HSA-REI.B.4B

Which is the ONLY method that can be used to solve this equation?

2x² - 7x + 2 = 0

• Square Root Method

• Factor Method

• Complete the Square

• Quadratic Formula

Tags

CCSS.HSA-REI.B.4B

Which of the following is not the same as "solution"?

• x-intercept

• roots

• zeros

• y-intercept

Tags

CCSS.HSF-IF.C.7A

What should you do first in solving this equation?
x² + 6x - 13 = 3

• Get factored form

• Write down: a=1, b=6, c=-13

• Make it equal 0 by subtracting 3 on each side

• Type it all in a calculator.

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

What is this?

• This is the speed of light formula.

• This is the quadratic formula.

• This is the zero product property.

• This is scary.

Tags

CCSS.HSA-REI.B.4B

Which method is MOST EFFICIENT to solve:
8x²  -  6  = 0

• Square Root Method

• Greatest Common Factor (GCF)

• Complete the Square

• Quadratic Formula

Tags

CCSS.HSA-REI.B.4B

Can this quadratic be solved by BOTH square root method AND difference of squares?
16x² - 25 = 0

• Yes!

• No - just square root method

• No - just difference of squares method

Tags

CCSS.HSA-REI.B.4B