Solve with Perfect Square Trinomials and Grouping Quadratics

Factor: x² + 24x + 144

• (x + 12)²
• (x + 9)²
• (x + 15)²
• (x + 13)²

Factor

x² + 18x + 81

• (x + 9)(x – 9)

• (x + 18)²

• (x + 9)²

• (x + 6)²

Factor: x² - 4x + 4

• (x + 2)²
• (x - 2)²
• (x + 4)²
• (x - 4)²

Factor: x² - 20x + 100

• (x-10)²

• (x+10)²

Factor: x² - 30x + 225

• (x + 15)²
• (x - 15)²
• (x + 25)²
• (x - 25)²

Factor:
 n² + 10n + 25

• (n + 5)(n - 5)
• (n + 25)(n + 1)
• (n - 5)²
• (n + 5)²

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

• Yes
• No

Is this a perfect square trinomial?
x² + 18x + 9

• Yes
• No

Is this a perfect square trinomial?
x² + 14x + 49

• Yes
• No

Which of the following is a perfect square trinomial?

• x² – 4x – 4 
• x² – 6x – 9 
• x² + 6x – 9 
• x² – 4x + 4