Quadratics STAAR Review

Which expression is equivalent to m² - 13m - 30 ?

• (m - 15)(m + 2)

• (m - 10)(m - 3)

• (m + 15)(m - 2)

• (m + 10)(m + 3)

Which expression is equivalent to x² - 17x - 60 ?

• (x - 20)(x + 3)

• (x - 5)(x - 12)

• (x - 20)(x - 3)

• (x + 5)(x - 12)

Which expression is a factor of 21x² + 13x - 20 ?

• 3x - 4

• 7x - 5

• 7x + 4

• 3x + 5

Which expression is a factor of 9r² - 4r + 1 ?

• 3r - 1

• r - 1

• 9r - 1

• There are no real factors

What are the solutions to the equation 3x² + 15x = 18 ?

• x = -3 and x = -2

• x = -6 and x = 1

• x = 6 and x = 13

• x = 0 and x = 1

Tags

CCSS.HSA-REI.B.4B

What are the solutions to 2(x-7)² = 32 ?

• x=3 and x=11

• x=1 and x=15

Tags

CCSS.HSA-REI.B.4B

The total number of seats in an auditorium is modeled by f(x) = 2x² - 6x, where x represents the number of rows or seats. How many rows of seats are there in the auditorium is it has a total of 416 seats?

• 32

• 13

• 20

• 16

6. What is the positive solution to the equation 0 = 1/3x² - 3 ?

Type the number only!

Tags

CCSS.8.EE.A.2

What are the solutions to (x+7)² = 81 ?

• -74 and 88

• -2 and 16

• -88 and 74

• -16 and 2

Tags

CCSS.HSA-REI.B.4B

Which expression is a factor of 18x² - 15x + 2 ?

• 3x - 2

• 9x - 1

• x - 2

• 2x - 1

Tags

CCSS.HSA.APR.B.2