Identifying Perfect Square Trinomials

When factoring
x² - 4x + 4 = 20,
what goes in the blank?
(x - __ )² = 20

• 4

• 2

• 8

• 20

Tags

CCSS.HSA-REI.B.4B

x² - 20x + 100

• (x-10)²

• (x+10)²

Tags

CCSS.HSA-REI.B.4B

The value of k in the perfect square trinomial kx²+30xy +9y² is _________

• 3

• 5

• 81

• 25

Tags

CCSS.HSA.APR.C.4

• 15

• 20

• 25

• 5

Tags

CCSS.HSA-REI.B.4B

x² + 18x + 81

• (x + 9)(x – 9)

• (x + 18)²

• (x + 9)²

• (x + 6)²

Tags

CCSS.HSA.APR.C.4

Is the polynomial a perfect square and if it is factor the polynomial.
x² - 16x + 16

• Is not a perfect square

• Is a perfect square; (x + 4)²

• Is a perfect square; (x - 4)²

• Is a perfect square; (x - 16)²

Tags

CCSS.HSA.APR.C.4

The value of k in the perfect square trinomial 225a² + 30ab + k is _________

• 10

• b²

• 15

• 4b²

Tags

CCSS.HSA-REI.B.4B

Factor completely. 9m²+30mn+25n²

• (3m+5n)²

• (3m-5n)²

• (3m+n)²

• (m+5n)²

Tags

CCSS.HSA.APR.C.4

Factor completely. b²-22b+121

• (b+11)²

• (b-11)²

• (b²+11)²

• (2b-11)²

Tags

CCSS.HSA.APR.C.4

Factor completely. 16p² - 8p + 1

• (4p-1)²

• (4p+1)²

• (p-4)²

• (4p-1)

Tags

CCSS.HSA.APR.C.4