Solve by Complex The Square

Simplify.

• -5i

• 5

• 5i

• -5

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

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

• 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

• A
• B
• C
• D

Tags

CCSS.HSA-REI.B.4B

CCSS.HSN.CN.C.7

• A
• B
• C
• D

Solve by taking square roots:

k² - 6 = -50

• k = ±4i√11

• k = ±4√11

• k = ±2i√11

• k = ±2√11

Tags

CCSS.HSA-REI.B.4B

Solve by square roots: x² + 1= -35

• x = ± 6

• x = 6i

• x = ± 6i

• x = i√6

Tags

CCSS.HSA-REI.B.4B

CCSS.HSN.CN.C.7

Solve for x by completing the square.

• x = -3±2i

• x = 7 or x = 6

• x = 2±i√3

• No solution

• x = -7 or x = -6

Tags

CCSS.HSA-REI.B.4B

CCSS.HSN.CN.C.7

Solve for x by completing the square:

• x = -4 or x = -1

• x = -1 or x = -4

• x = 2+i or x = 2-i

• x = -2+i or x = -2-i

Tags

CCSS.HSA-REI.B.4B

CCSS.HSN.CN.C.7

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