GCF and difference of two squares

Factor x² – 16.

• (x + 2)(x – 8)
• (x – 4)(x – 4)
• (x + 4)(x + 4)
• (x + 4)(x – 4)

Tags

CCSS.HSA.APR.B.3

CCSS.HSA.SSE.A.2

CCSS.HSA.SSE.B.3

Factor 4y² – 9.

• (2y + 3)(2y – 3)
• prime
• (2y + 3)(2y + 3)
• (2y – 3)(2y – 3)

Tags

CCSS.HSA.SSE.A.2

CCSS.HSA.SSE.B.3

What does GCF mean?

• green colored frogs

• greatest coefficient

• greatest common factor

• greater common fraction

Tags

CCSS.6.NS.B.4

What is the GCF? 

 $5x^2+20x$  

• 5

• x

• 5x

• 20x

Tags

CCSS.HSA.APR.A.1

CCSS.HSA.SSE.A.2

CCSS.HSA.SSE.B.3

What is the GCF? 

 $3x^2-2x$  

• 3

• 3x

• x

• 2

Tags

CCSS.HSA.SSE.B.3

Factor using GCF:

 $x^2-5x$  

Remember: Write your answer as GCF(Quotient)

• 1(x - 5)

• x(x - 5x)

• x(x - 5)

• x²(1 - 5)

Tags

CCSS.HSA.APR.A.1

CCSS.HSA.SSE.A.2

CCSS.HSA.SSE.B.3

We can't factor using difference of two square on this binomial:

 $49x^2+4y^2$  

Why?

• Because 4 is not a perfect cubed number.

• Because 4 is not a perfect squared number.

• Because 49 is not a perfect squared number.

• Because we can't factor using difference of two squares because there is an addition sign.

Tags

CCSS.HSA.SSE.A.2

Do you think you can factor this using difference of two squares?

 $16x^3-25y^2$  

• Yes, because there is a subtraction sign between two squared numbers

• No, you need to add them

• Yes because everything is a squared number

• No because you can only use this method on squared numbers.  $x^3$  is not a squared number.

Tags

CCSS.HSA.SSE.A.2

GCF of 12 and 18

• 3
• 4
• 6
• 2

Tags

CCSS.6.NS.B.4

GCF 24 and 36

• 8
• 6
• 12
• 4

Tags

CCSS.6.NS.B.4