Factoring GCF and Trinomials with Coefficient of 1

Which of the following methods would be best to solve this equation by Factoring?
x² - 6x - 27 = 0

• Difference of Squares

• Trinomial when a > 1

• Factor by Grouping

• Trinomial when a = 1

Which of the following methods would be best to solve this equation by Factoring?
25x² - 16 = 0

• Difference of Squares

• GCF

• Trinomial when a =1

• Factor by Grouping

How should you factor the following expression?

• Perfect Squares:

  Use (x + a ) (x - a )

• Factor when a>1, slip & slide

• No Leading Coefficient:

  Go straight to (x ± a) (x ± b)

• Factor by Grouping

How should you factor the following expression?  
x² - 5x + 6

• Perfect Squares:
  Use (x + a ) (x - a )

• Perfect Cubes:
  Use SOP SMS

• No Leading Coefficient:
  Go straight to (x ± a) (x ± b)

• Multiply 1st & Last;
  Replace middle term;
  Factor by Grouping

Rewrite the trinomial in factored form

How should you factor the following expression?
x² + 7x - 30

• Perfect Squares:
  Use (x + a ) (x - a )

• Perfect Cubes:
  Use SOP SMS

• No Leading Coefficient: Go straight to (x ± a) (x ± b)

• Multiply 1st & Last;
  Replace middle term;
  Factor by Grouping