Solving Using Square Roots with Imaginary

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

x² + 36 = 0

• x = ±6

• x = 6i

• x = -6

• x = ±6i

Tags

CCSS.HSA-REI.B.4B

CCSS.HSN.CN.C.7

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

• 4i

• 4, -4

• 25i, -25i

• -5i, 5i

Tags

CCSS.HSA-REI.B.4B

Solve using square roots

3(x - 2)² - 4 = -16

• 2 ± 2i

• 2 ± √2i

• 2 ± 4i

• -2 ± 2i

Tags

CCSS.HSA-REI.B.4B

CCSS.HSN.CN.C.7

• 10
• -10
• 10i
• -10i

√-4

• -2

• -2i

• 4

• 2i

• 10
• -10
• 10i
• -10i

What does this simplify to?

• -12

• -11

• -10

• undefined

Solve.
 3x² + 2 = 12

• x = ± (i√30)/3

• x = ± √10

• x = ± (√30)/3

• x = ± (i√13)/3

Tags

CCSS.HSA-REI.B.4B