Factoring Trinomials with GCFs and a = 1

Factor
r² -16r + 60

• (r - 15)(r + 4)

• (r - 6)(r + 10)

• (r - 6)(r - 10)

• (r +30)(r - 2)

What is the GCF of the trinomial?
3x² - 9x -120

• 3

• 2

• 6

• 9

Factor completely.
k² -2k - 24

• (k+4)(k-6)

• (k+4)(k+6)

• (k+6)(k-1)

• (k-4)(k+6)

Factor:
x² + 0x - 144

• (x + 12)²

• (x - 12)(x + 12)

• (x - 12)²

• 12²

Tags

CCSS.HSA.APR.C.4

Factor:
x² -15x + 36

• (x - 18)(x + 2)

• (x - 12)(x - 3)

• (x - 12)(x + 3)

• (x + 18)(x - 2)

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

• Yes

• No

Tags

CCSS.HSA.APR.C.4

Factor this trinomial:
x²+10x+16

• (x+2)(x+8)

• (x-2)(x-8)

• (x+1)(x+16)

• (x+6)(x+10)

Factor
a² - a - 12

• (a - 4)(a + 3)

• (a + 6)(a - 4)

• (a - 6)(a + 4)

• (a + 4)(a - 3)

What is the first question you ask yourself when factoring a polynomial? 

• How many terms does it have? 

• Is there a GCF? 

• What strategy should I use? 

• Why do I have to learn this?!?!?!