LSAE 5.23

• The zeros are -361 and 361, because the factors of g are (x + 361) and (x - 361).

• The zeros are 19 and -19, because the factors of g are (x + 19) and (x - 19).

Tags

CCSS.HSA-SSE.B.3B

CCSS.HSF-IF.C.8A

• n = ±4

• n = ±9

• n = ±12

• n = ±72

Tags

CCSS.8.EE.A.2

• x = 11

• x = 7 and x = -11

• x = -7, x = 11

• x = -7 and x = -11

Tags

CCSS.HSA-REI.B.4B

The area of a rectangle is 112 ft². The length of the rectangle is 6 feet greater than the width of the rectangle. This situation can be modeled by the equation x² + 6x - 112 = 0. What is the width of x?

• A. 7 ft

• B. 16 ft

• C. 8 ft

• D. 14 ft

What are the solutions to the following equation? -7(y - 10)² - 6 = -258

• -4 and -16

• 4 and 16

• -4 and 16

• 4 and -16

Tags

CCSS.HSA-REI.B.4B

Jared is creating perfect square trinomials. Move the correct term to complete the perfect square trinomial. Not all terms will be used.

121 81 9 11 100 9 36

x² – 12x + ______
x² + 22x + ______
x² – 18x + ______

Which of the following correctly completes all the perfect square trinomials above?

• x² – 12x + 36
  x² + 22x + 121
  x² – 18x + 81

• x² – 12x + 81
  x² + 22x + 36
  x² – 18x + 121

• x² – 12x + 9
  x² + 22x + 100
  x² – 18x + 9

• x² – 12x + 121
  x² + 22x + 81
  x² – 18x + 36

Tags

CCSS.HSA-REI.B.4B

Gina is matching perfect square quadratic equations to their factors. Which of the following is correctly matched? Select TWO correct answers.

• A. x² – 6x + 9 = (x – 3)²

• B. x² + 8x + 16 = (x – 4)²

• C. x² + 18x + 18 = (x + 9)²

• D. x² – 16x + 32 = (x – 8)²

• E. x² + 10x + 25 = (x + 5)²

Tags

CCSS.HSA.APR.C.4

Henry solved the quadratic equation x² + 3x = 9. What are the solutions to the equation?

• x = (-3 ± √40) / 2

• x = (3 ± √45) / 2

• x = (-3 ± 3√5) / 2

• x = (3 ± 3√5) / 2

Tags

CCSS.HSA-REI.B.4B

• -1/2 and -3

• 1/2 and 3

• (-7 ± √73) / 4

• (7 ± √73) / 4

Tags

CCSS.HSA-REI.B.4B

• 2.72 seconds

• 2.73 seconds

• 2.41 seconds

• 2.42 seconds