Polynomial Quizizz #1

Simplify the following:
(7-2i)(7+2i)

• 49
• 49-4i-4i²
• 53
• 14-4i-4i²

Simplify the following:
(3i+2)(6-3i)

• 21+12i
• 12-21i
• 18-6i
• 15i+12

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

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

• 4 + 6i
• 4
• 13
• 4 + 9i

Tags

CCSS.HSN.CN.A.2

i¹⁰⁰

• i
• -1
• -i
• 1

Tags

CCSS.HSN.CN.A.2

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

• 4 + 6i
• 6
• 13
• 6i

Tags

CCSS.HSA.APR.A.1

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

• 4 - 9i 
• 13
• 4 + 6i + 9i²
• 13 + 6i

Tags

CCSS.HSA.APR.A.1

What is the degree of the polynomial function
P(x)=3x⁴-7x²-2x⁷-x+4?

• 4
• 7
• 2
• 1