Solving Quadratics by Square Roots with Imaginary Numbers

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x² + 36 = 0

• x = ±6

• x = 6i

• x = -6

• x = ±6i

Tags

CCSS.HSA-REI.B.4B

CCSS.HSN.CN.C.7

Solve using square roots.

• √3

• ±√3

• -3

• ±i√3

Tags

CCSS.HSA-REI.B.4B

Solve by taking the square root: -9k² = 225

• 4i

• 4, -4

• 25i, -25i

• -5i, 5i

Tags

CCSS.HSA-REI.B.4B

Solve.
 3x² + 2 = 12

• x = ± (i√30)/3

• x = ± √10

• x = ± (√30)/3

• x = ± (i√13)/3

Tags

CCSS.HSA-REI.B.4B

Solve.   x² = √-36

• x = ± 6

• x = 6i

• x = ± 6i

• x = i√6

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

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

• A

• B

• C

• D

Tags

CCSS.8.EE.A.2

Solve by taking square roots:

2b² - 4 = -166

• b = 9i, b = -9i

• b = 3, b = -3

• b = 9, b = -9

• b = 3i, b = -3i

Tags

CCSS.HSA-REI.B.4B