Solving Quadratics with Square Roots Method and Imaginary Numbers

• no real solution

• 1 real solution

• 2 real solutions

• imaginary

• fake

• intangible

• i

• a

• e

• b

Tags

CCSS.HSN.CN.A.1

Reorder the following steps for solving quadratics by square roots.

• Take the SQUARE ROOT of both sides

• REWRITE the equation as x² = n

• SIMPLIFY the radical. Place "±" to indicate both answers.

Tags

CCSS.HSA-REI.B.4B

Solve the equation using the square roots method:

x² − 64 = 0

• x = ±8

• x = ±64

• x = ±32

• x = ±16

• x = ±4

Tags

CCSS.HSA-REI.B.4B

Solve by taking square roots:

2b² - 4 = -166

• b = 9i, b = -9i

• b = 3, b = -3

• b = 9, b = -9

• b = 3i, b = -3i

Tags

CCSS.HSA-REI.B.4B

Solve by taking the square root: -9k² = 225

• 4i

• 4, -4

• 25i, -25i

• -5i, 5i

Tags

CCSS.HSA-REI.B.4B

• A
• B
• C
• D

Tags

CCSS.8.EE.A.2

Solve using square roots.

• √3

• ±√3

• -3

• ±i√3

Tags

CCSS.HSA-REI.B.4B

Solve the quadratic with the square root method.

Tags

CCSS.HSA-REI.B.4B

• A

• B

• C

• D

Tags

CCSS.8.EE.A.2

Solve the equation using the square roots method:

7x² + 8 = 15

• x = ±1

• x = ±2

• x = ±3

• x = ±4

Tags

CCSS.HSA-REI.B.4B