Solving Quadratics

Solve
2x² + 17x + 21 = 0

• x= ^-21/₂, -17

• x= ²/₃, 16

• x=-7, ^-3/₂

• x=15, -³/₇

Tags

CCSS.HSA-REI.B.4B

• A
• B
• C
• D

Tags

CCSS.HSA-REI.B.4B

• F
• G
• H
• I

Tags

CCSS.HSA-REI.B.4B

• F
• G
• H
• I

Tags

CCSS.HSA-REI.B.4B

Solve by taking square roots:
k² - 6 = 43

• k = √37

• k = 37 or - 37

• k = 7, k = -7

• no solution

Tags

CCSS.HSA-REI.B.4B

Solve by taking square roots:
5b² - 4 = 41

• b = 9, b = -9

• b = 3, b = -3

• b = 8, b = -8

• no solution

Tags

CCSS.HSA-REI.B.4B

Identify the 'a' value: y = 16x² -8x -24

• 16

• 8

• -8

• -24

Identify the 'b' value: y = 16x² -8x -24

• 16

• -8

• 8

• -24

Identify the 'c' value: y = 16x² -8x -24

• 16

• -8

• 24

• -24