Solving Quadratic Equations Square Root Graphing

Solve by taking the square root:

x² = 16

• ± 4

• ± 8

• 4

• 8

Tags

CCSS.HSA-REI.B.4B

• p = 2 or p = -1

• p = 1 or p = -2

• p = 4 or p = -2

• No solution

Tags

CCSS.HSA-REI.B.4B

Solve using the quadratic formula:

x² + 4x - 40 = -8

• -10 & -4

• -4 & 10

• -8 & 4

• 8 & -4

Tags

CCSS.HSA-REI.B.4B

Solve using the quadratic formula:

2x² + 2x - 12 = 0

• -2 or 3

• 2 or 3

• 2 or -3

• -2 or -3

Tags

CCSS.HSA-REI.B.4B

Use the graph of the function f(x)=-2x²+4x+6 to find the solution(s) of the equation -2x²+4x+6=0.

• x=-1

• x=3

• x=-1 and x=3

• x=1and x=8 

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

• -1 and 3
• 1 and -3
• -1 and -3
• 1 and 3

x² + 44 = -15x

• {-8, 2}

• {-7, 5}

• {-11, -4}

• {-11}

Tags

CCSS.HSA-REI.B.4B

Solve.

(x+3)²-5 = 9

• ±√14 -3

• √14 - 3

• ±11

• ±5

Tags

CCSS.HSA-REI.B.4B

Use the graph to solve 2x² + 12x - 18 = 0

• x = 3 and x = -3

• x = 3

• x = -3

• No real solutions