CCSS.Math.Content.HSA.REI.B.4

Solve
a² + 2a - 24 = 0

• a = -6, 4
• a = 6, -4
• a = 12, -2
• a = 8, -3

Tags

CCSS.Math.Content.HSA.REI.B.4

b² - 4ac would equal: y = 2x² -x -3

• 25
• -23
• -25
• 0

Tags

CCSS.Math.Content.HSA.REI.B.4

Solve by factoring.
z² - 18z + 81 = 0

• z = 9
• z = -9
• z = 9 or z = -9

Tags

CCSS.Math.Content.HSA.REI.B.4

Solve x² - 5x + 10 = 0

• (5 - i√15)/2  ,  (5 + i√15)/2
• (5 - √15)/2  ,  (5 + √15)/2
• (5 - i√65)/2  ,  (5 + i√65)/2
• (5 - √65)/2  ,  (5 + √65)/2

Tags

CCSS.Math.Content.HSA.REI.B.4

Solve  7x²  - 28x = 0

• x = 4, x = 7
• x = 0, x  = 4
• x = 0, x = -4
• x = -4, x = -7

Tags

CCSS.Math.Content.HSA.REI.B.4

Solve on the domain [0, 2π)
4sin²x = 3

• π/6, 11π/6
• π/3, 2π/3
• π/6, 5π/6, 7π/6, 11π/6
• π/3, 2π/3, 4π/3, 5π/3

Tags

CCSS.Math.Content.HSA.REI.B.4

What is the positive solution to the equation 0 = (1/5)x² - 5?

• (1/5)

• 1

• 5

• -5

Tags

CCSS.Math.Content.HSA.REI.B.4

Solve.

(x+10)(x-2) = 0

• x= 10 and 2

• x= -2 and 10

• x= -10 and 2

• x= -2 and -10

Tags

CCSS.Math.Content.HSA.REI.B.4

What is the first step to complete the square for this quadratic equation?

2y² + 20y + 18 = 0

• factor the LEFT

• divide by 2

• subtract 18 from both sides

• add a blank/box to both sides

Tags

CCSS.Math.Content.HSA.REI.B.4

 $b^2-4b+4=0$  

• x = -2

• x = 2

• no real solution

• x = -2 and 2

Tags

CCSS.Math.Content.HSA.REI.B.4