Gcf and Grouping Practice

What is the GCF of 18 and 24?

• 3

• 6

• 8

• 9

What is the greatest factor of 28 and 49?

• 1

• 2

• 7

• 12

What is the GCF? 5x²+20x

• 5

• x

• 5x

• 20x

Factor by grouping:

20x³-25x²+4x-5

• (5x²-5)(4x+1)

• 5(x²-1)(4x+5)

• (5x²+1)(4x-5)

• (5x²+1)(4x-1)

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

• 3

• 2

• 6

• 9

What is the GCF? 2x²- 4x + 8

• 2x

• 2

• x

• 1

Whenever you are factoring ANY polynomial, what do you ALWAYS do first?

• Look for a GCF and take it out

• Use XBox Method

• Use Factor By Grouping

• Cry

24 and 12 can BOTH be divided by ___. Select all of the choices that make this statement true.

• 2

• 4

• 6

• 8

Tags

CCSS.4.NBT.B.6

Why do we need to find the GCF of polynomials? Choose the BEST option.

• Because Ms. Rice said so

• To simplify the polynomials as much as possible before working with them

• To get rid of stuff

• Because the GCF makes the problem impossible to solve

Factor by grouping:
4p³+8p²+3p+6

• (2p²+3)(p+2)

• (2p²+6)(p+4)

• (4p²+3)(p+2)

• (4p²+8p)(3p+6)