Solving Quadratics by Graphing and Square Roots

The solutions of the quadratic equation (you may use desmos) 
x²+2x-15=0 are

• x = 3 or x = 5

• x = 5 or x = -3

• x = -5 or x = 3

• x = -3 or x = -5

Tags

CCSS.HSA-REI.B.4B

The solutions of the quadratic equation (you may use desmos)  
x²+12x+35=0 are

• x = -5 or x = -7

• x = 5 or x = 7

• x = -35 or x = -1

• x = -9 or x = -4

Tags

CCSS.HSA-REI.B.4B

Solve by taking the square root:

YOU MUST SHOW WORK FOR CREDIT!

x² = 49

• -7

• 7

• 49

• ±7

Tags

CCSS.HSA-REI.B.4B

x² -4 = 77

• 9

• -9

• No Real Solutions

• ±9

Tags

CCSS.8.EE.A.2

Solve by taking square roots:

YOU MUST SHOW WORK FOR CREDIT!
k² - 6 = 43

• k = √37

• k = 37 or - 37

• k = 7, k = -7

• no solution

Tags

CCSS.HSA-REI.B.4B

Solve by taking the square root:

YOU MUST SHOW WORK FOR CREDIT!

4x² = 100

• ±10

• ±25

• ±5

• 5

Tags

CCSS.8.EE.A.2

Solve by taking square roots:

YOU MUST SHOW WORK FOR CREDIT!
5b² - 4 = 41

• b = 9, b = -9

• b = 3, b = -3

• b = 8, b = -8

• no solutionb

Tags

CCSS.HSA-REI.B.4B

Solve by taking the square root

YOU MUST SHOW WORK FOR CREDIT!
-9p² = -576

• x = 8

• x = 64

• x = 8, -8

• x = 64, -64

Tags

CCSS.HSA-REI.B.4B

Solve by taking the square root

YOU MUST SHOW WORK FOR CREDIT!
(h - 2)² = 9

• h = 5, -1

• h = 5, -5

• h = 5

• h = -1

Tags

CCSS.HSA-REI.B.4B

Solve by taking the square root

YOU MUST SHOW WORK FOR CREDIT!
(x-5)² = 25

• ±0

• ±10

• 10, 0

• -10, 0

Tags

CCSS.HSA-REI.B.4B