Solving a Quadratic by Square Root

x²−10=19

• x = √29

• x = ±2√9

• x = ±29

• x = ±5√19

Tags

CCSS.8.EE.A.2

2x²= 30

• x= √5

• x= √30

• x= √15

• x= ±5

Tags

CCSS.8.EE.A.2

• -45 and 45
• -5 and 5
• -225 and 225
• -15 and 15

Tags

CCSS.8.EE.A.2

Can this quadratic be solved by BOTH square root method AND difference of squares?
16x² - 25 = 0

• Yes!

• No - just square root method

• No - just difference of squares method

Tags

CCSS.HSA-REI.B.4B

Can this quadratic be solved by BOTH square root method AND difference of squares?
2x² - 7 = 0

• Yes!

• No - just square root method

• No - just difference of squares method

Tags

CCSS.HSA-REI.B.4B

What are the roots / solutions of the quadratic equation 3x² = 300 ?

• x = 10

• x = 9

• x = + 9

• x = + 10

Tags

CCSS.HSA-REI.B.4B

What are the roots / solutions of the quadratic equation x² = 32?

Tags

CCSS.8.EE.A.2

What are the roots / solutions of the quadratic equation (x+ 1)² = 50?

Tags

CCSS.HSA-REI.B.4B

Use the square root property to solve the Quadratic Equation.
2(x - 4)² = 200

• ±10

• -14, 6

• -6, 14

• 100

Tags

CCSS.HSA-REI.B.4B

Solve by taking square roots:

5m² + 1 = 6

• m = 1

• m = 1 or -1

• m = √7

• m = 7/5 m = -7/5

Tags

CCSS.HSA-REI.B.4B