Difference of Squares and other things

x² - 9

• (x + 3)²

• (x + 3) (x - 3)

• (x - 3)²

• x + 3(x - 3)

Tags

CCSS.HSA.APR.C.4

x² - 16

• (x + 4) (x - 4)

• (x + 8) (x - 2)

• (x + 4)²

• x + 4(x - 4)

Tags

CCSS.HSA.APR.C.4

4x² - 25

• (2x + 5) (2x - 5)

• (2x - 5)²

• (2x + 5)²

• 2x + 5(2x - 5)

Tags

CCSS.HSA.APR.C.4

25x² - 36y²

• 5x + 6y(5x - 6y)

• (5x + 6y) (5x - 6y)

• (5x + 6y)²

• (5x - 6y)²

Tags

CCSS.HSA.APR.C.4

64x² - 81y²

• (8x + 7y) (8x - 7y)

• (8x + 9y) (8x - 9y)

• (6x + 7y) (6x - 7y)

• (6x + 9y) (6x - 9y)

Tags

CCSS.HSA.APR.C.4

4x² - 16

• 4(2x + 4) (x - 2)

• 4(4x + 2) (x - 2)

• (2x + 4) (2x - 4)

• 4(x + 2) (x - 2)

Tags

CCSS.HSA.APR.C.4

x⁴ - 100y²

• (x² + 10y) (x² - 10y)

• (x + 10y) (x - 10y)

• (x + 10y) (x³ - 10y)

• (x³ + 10y) (x - 10y)

Tags

CCSS.HSA.APR.C.4

We can't factor using difference of two square this

25x² - 51y². Why?

• Because 51 is not a perfect cubed number.

• Because 51 is not a perfect squared number.

• Because 25 is not a perfect squared number.

• Because we can't factor using difference of two squares if it is addition sign.

Tags

CCSS.HSA.APR.C.4

We can't factor using difference of two square this

49x² + 4y². 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 if it is addition sign.

Tags

TEKS.MATH.2A.7E

TEKS.MATH.9-12.II.C.1

TEKS.MATH.A.10F

Which one is false about the difference of two squares?

• We can factor that it is addition sign.

• We can factor that it is a perfect squared number (Example: x², 25, 49)

• Formula: a² - b² = (a + b) (a - b)

• We can factor that it is minus sign.

Tags

CCSS.HSA.APR.C.4