Reviewing Factoring

Factor out the GCF

18x³ + 81x - 27

• 9x (2x² + 9x - 3)

• 3 (6x³ + 27x - 9)

• 9 (2x³ + 9x - 3)

• 9 (2x² + 9x - 3)

Which of the following trinomials is a perfect square trinomial?

• r² - 6r + 36
• 4y² + 10y + 25
• x² + 16x + 16
• 9a² - 12a + 4

Which of the following is NOT a perfect square trinomial?

• x² – 16x + 64 
• x² – 10x + 20 
• x² – 28x + 196 
• x² – 24x + 144 

• (b + 6)(b - 4)

• (b - 2)(b + 12)

• (b + 8)(b - 3)

• (b + 4)(b - 6)

Match the quadratic expressions to their factored form

Match the following expressions with their factored forms.

• 2(5a - 8)(a + 7)

• 2(a -7)(5a -8)

• 2(5a + 8)(a - 7)

• 2(a + 7)(5a + 8)

• (3k + 4)(k - 1)

• (3k - 4)(k + 1)

• (3k + 1)(k - 4)

• (3k - 1)(k + 4)