Solving Quadratic Equations by Factoring and Square Root

Which TWO methods could be used to solve this equation?

x² - 3x - 54 = 0

• Square Root Method

• Factor Method

• Complete the Square

• Quadratic Formula

What should you do first if solving this equation using the FACTORING method?

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.

Solve by factoring: x² = 7x + 18

• -7 and -18

• 9 and 2

• 9 and -2

• 2 and 7

Solve by the Square Root method:

-5x² = -50

• ± 5

• ± 10

• ± √10

• -10

Find the missing value "c" to create a perfect square trinomial:
x² – 8x  + ___ 

• -4

• 16

• 4

• 8

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

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

3a² = 27

• Square Root Method

• Factor Method

• Complete the Square

• Quadratic Formula

Which TWO methods could be used to solve this equation?

x² + 2x = -9

• Square Root Method

• Factor Method

• Complete the Square

• Quadratic Formula

Which TWO methods could be used to solve this equation? 2x² + 4x - 6 = 0

• Square Root Method

• Factor Method

• Quadratic Formula

• Completing the Square

Solve by using a method of your choice:

k² − 12k + 23 = 0

• {6 + √13, 6 - √13}

• {-6 + √13, -6 - √13}

• {6 + √59, 6 - √59}

• {-6 + √59, -6 - √59}