Quadratic Method

• A

• B

• C

• D

Which is another way of correctly expressing
 (x  - 3)(x - 3)?

• (x² - 3²)

• (x² - 3)

• (x + 3)(x - 3)

• (x - 3)²

Tags

CCSS.HSA.APR.C.4

( x - 1 ) ( x + 3 ) = 0
so, the roots are 1 and

• 0

• -1

• 3

• -3

Tags

CCSS.HSA.APR.B.2

By using factorisation method, the roots of 2x² - x - 15 = 0 are

• -2.5 and 3

• 2.5 and -3

• 2.5 and 3

• -2.5 and -3

Tags

CCSS.HSA-REI.B.4B

Form the quadratic equation by using -3 and 7 as a roots

• x² - 4x - 21 = 0

• x² + 4x - 21 = 0

• x² - 4x + 21 = 0

• x² + 4x + 21 = 0

Tags

CCSS.HSA.APR.B.3

x² - 25

• ( x + 5 ) ( x - 5 ) 

• ( x - 5 ) ( x - 5 ) 

• ( x + 5 ) ( x + 5 ) 

• Prime

Tags

CCSS.HSA.APR.C.4

x² - 16

• Prime

• ( x - 4) ( x + 4) 

• ( x - 8) ( x + 8) 

• ( x - 4) ( x - 4) 

Tags

CCSS.HSA.APR.C.4

Factor 4x²-9

• (4x-9)(4x+9)

• (2x-3)(2x+3)

• 2x-3

• (2x-4.5)(2x+4.5)

Tags

CCSS.HSA.APR.C.4

Factor completely.

121x² - 49

• ( 11x - 7 ) ²

• ( 11x - 7 ) ( 11x - 7 )

• ( 11x + 7 ) ( 11x - 7 )

• ( 12x + 7 ) ( 12x - 7 )

Tags

CCSS.HSA.APR.C.4

32n² - 50
(Check for a GCF)

• (16n - 25)(16n + 25)

• 2(8n - 25)(8n + 25)

• 2(4n + 5)(4n - 5)

• Not Factorable

Tags

CCSS.HSA.APR.C.4