1.5E Choosing a Method

Which method is most efficient to solve:
8x²  -  5x  = 0

• Square Roots

• Factoring

• Complete the Square

• Quadratic Formula

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

• Square Root Method

• Factoring

• Complete the Square

• Quadratic Formula

Can this quadratic be solved by BOTH square root method AND factoring?

16x² - 25 = 0

• Yes!

• No - just square root method

• No - just factoring

Can this quadratic be solved by BOTH square root method AND difference of squares?
2x² - 7 = 0

• Yes!
• No - just square root method
• No - just difference of squares method

When should you decide to Complete the Square?

• When the a value is larger than 1
• When the middle term is odd
• When a = 1 and the middle term is even

What method works 100% of the time? 

• Factoring

• Quadratic Formula

• Factoring

• Square Root Method

Decide on the best method:

3a² + 13a = -4

• Square Root Method

• Factoring

• Complete the Square

• Quadratic Formula

Decide on the best method:
x² - 3x - 54 = 0

• Square Root Method

• Factoring

• Complete the Square

• Quadratic Formula

Decide on the best method:

x² + 2x = -9

• Isolation Method

• Factor Method

• Complete the Square

• Quadratic Formula

• Isolation Method

• Factoring

• Completing the Square

• Quadratic Formula