Square Root Method (Imaginary Numbers)

Solve.
4x² - 7 = -10

• x = ± (3i)/2
• x = ± (i√3)/2
• x = ± (i√3)/4
• x = ± (i√6)/4

Tags

CCSS.HSA-REI.B.4B

CCSS.HSN.CN.C.7

Solve.  
x² +12 = 5

• x = ± 49
• x = ± i√7
• x = ± √7
• x = ± 3.5i

Tags

CCSS.HSA-REI.B.4B

Simplify

• 5i
• -5i
• ±5i
• ±

Simplify

• ± 4i √2
• ± 4 √2
• ± 2i √8
• ± 2 √8

Simplify

• ± 2i √10
• ± 2 √10
• ± 4i √10
• ± 4 √10

Simplify

• ± 6
• ± 6i
• ± √6i
• ± √6

Simplify

• ± 10i
• ± 10
• ± √10i
• ± √10

Simplify:
(3 + 2i) + (4i + 6)

• 9 + 6i
• 7i + 8
• 9 + 6i²
• 9 - 6i

Tags

CCSS.HSN.CN.A.2

Simplify:
(2 - 4i) + (5 + 6i)

• 7 + 2i
• 7 - 2i
• 7 + 2i²
• 7 - 2i²

Tags

CCSS.HSN.CN.A.2

Simplify:
(4 + 7i) - (3 + 2i)

• 1 + 5i
• 7 + 9i
• 1 + 9i
• -1 + 5i

Tags

CCSS.HSN.CN.A.2