Simplifying Radicals and Solving Quadratic Equations Review

Simplify the following radical: √32

• 3√2
• 4√8
• 16√2
• 4√2

Tags

CCSS.HSN.RN.A.2

Simplify -√-8

• -i√8
• -2i√2
• 2i√2
• -8i

Tags

CCSS.HSN.CN.A.1

CCSS.HSN.CN.A.2

CCSS.HSN.RN.A.2

Calculate (multiply):
(1 − 2i)(6 + 5i)

• 16 − 7i
• -16 + 7i
• -16 − 7i
• 16 + 7i

Tags

CCSS.HSN.CN.A.2

i⁷⁹

• i
• 1
• -1
• -i

Tags

CCSS.HSN.CN.A.1

CCSS.HSN.CN.A.2

What is i¹²⁹?

• -i
• i
• 1
• -1

Tags

CCSS.HSN.CN.A.2

Solve for x by factoring.

3x²+9x-30=0

• x= 2, -5

• x= 5, -2

• x= -5, -2

Solve for x by factoring

6x²-x-2=0

• x= -2/3, 1/2

• x= 2/3, -1/2

• x= -2/3, -1/2

Solve x² - 5x + 10 = 0

• (5 - i√15)/2  ,  (5 + i√15)/2
• (5 - √15)/2  ,  (5 + √15)/2
• (5 - i√65)/2  ,  (5 + i√65)/2
• (5 - √65)/2  ,  (5 + √65)/2

Tags

CCSS.HSA-REI.B.4B

CCSS.HSN.CN.C.7

Solve using the quadratic formula. f(x) = 2x²- 4x + 7

• (2±2i√10)/2

• (4±√40)/4

• (2±i√10)√/2

• (2±2i√40)/4

Tags

CCSS.HSA-REI.B.4B

CCSS.HSN.CN.C.7

Solve. x² + 4x - 16 = 0

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Tags

CCSS.HSA-REI.B.4B