Special Cases Factoring

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Is this a perfect square trinomial?
x² + 16x + 64

• Yes

• No

Which of the following is a perfect square trinomial?

• x² – 4x – 4 

• x² – 6x – 9 

• x² + 6x – 9 

• x² – 4x + 4 

Is the polynomial a difference of squares and if it is factor the polynomial.

d² - 36

• Is not a difference of squares

• Is a difference of squares;

  (d + 6)(d - 6)

• Is a difference of squares; (d - 6)²

• Is a difference of squares;

  (d + 18)(d - 18)

Fully Factor the Following
25x²-81

• (5x-9)²

• (5x+9)(5x-9)

• 25(x-9)²

• (9x+5)(9x-5)

x² - 400

• ( x - 200) ( x + 200) 

• ( x + 20) ( x + 20) 

• Prime

• ( x - 20) ( x + 20)