Solve Using Square Roots With Complex Answers

Simplify.

• -5i

• 5

• 5i

• -5

√(-300)

• 10i√3

• 15√15

• -10√3

• 2i√13

Another way to express √-1 is?

• 1

• -1

• i

• 0

Tags

CCSS.HSN.CN.A.1

Leon is asked to simplify √-120. A good first step would be to...

• divide 120 by 2

• replace the negative with an i on the outside of the radical

• take the square root of -120

• graph y = √-120

• -2

• 2

• 2i

• No solution

Solve for x

3x² - 6 = -9

• ±1

• ±i

• ±3

• ±3i

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: k² - 6 = -50

• k = ±4i√11

• k = ±4√11

• k = ±2i√11

• k = ±2√11

Tags

CCSS.HSA-REI.B.4B

CCSS.HSN.CN.C.7

Solve: 3x² = -12

• x = -4, 4

• x = 2, -2

• x = 2i, -2i

• x = 4i, -4i

Tags

CCSS.HSA-REI.B.4B

CCSS.HSN.CN.C.7