Solving Quadratics with Complex Numbers

Solve for x: 

• x = {-4, -1}
• x = {-1, -4}
• x = {2+i, 2-i}
• x = {-2+i, -2-i}

Tags

CCSS.HSA-REI.B.4B

CCSS.HSN.CN.C.7

Solve for x:

• x = {-3+2i, -3-2i}
• x = {7, 6}
• x = 2±i√3
• No solution

Tags

CCSS.HSA-REI.B.4B

CCSS.HSN.CN.C.7

i²⁴

• i
• 1
• i²
• 0

Tags

CCSS.HSN.CN.A.2

i²⁵

• i
• -1
• -i
• 1

Tags

CCSS.HSN.CN.A.2

Solve for x: x² - 5x + 8 = 0

• x = (-5±i√7)/2
• x = (5±i√7)/2
• x = (8±i√7)/2
• x = (5±√57)/2

Tags

CCSS.HSA-REI.B.4B

CCSS.HSN.CN.C.7

Solve for x: x² - 3x + 10 = 0

• x = -3±i√31
• x = (3±√49)/2
• x = 5, -2
• x = (3±i√31)/2

Tags

CCSS.HSA-REI.B.4B

CCSS.HSN.CN.C.7

Find the roots: x² - 8x - 20 = 0

• x = {10, -2}
• x = {-10, 2}
• x = (8±√12)/2
• x = {6, 1}

Tags

CCSS.HSA-REI.B.4B

i¹⁰⁰

• i
• -1
• -i
• 1

Tags

CCSS.HSN.CN.A.2

i¹⁰¹

• i
• -1
• -i
• 1

Tags

CCSS.HSN.CN.A.2

Add: (2 + 3i) + (2 - 3i)

• 4 + 6i
• 4
• 13
• 4 + 9i

Tags

CCSS.HSN.CN.A.2