Quadratic Formula with Complex Roots

If the discriminant is NEGATIVE, then the solution will be

• one real repeated solution

• two real solutions

• no solutions

• two imaginary (complex) solutions

Tags

CCSS.HSA-REI.B.4B

Solve the given equation using the Quadratic Formula. Make sure you fully simplify your answer.

Tags

CCSS.HSA-REI.B.4B

CCSS.HSN.CN.C.7

Solve the given equation using the Quadratic Formula. Make sure you fully simplify your answer.

Tags

CCSS.HSA-REI.B.4B

CCSS.HSN.CN.C.7

Solve the given equation using the Quadratic Formula. Make sure you fully simplify your answer.

Tags

CCSS.HSA-REI.B.4B

CCSS.HSN.CN.C.7

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 by ANY method you have learned: x²−2x+11=0

• 1±i√10

• 1±√10

• -1±i√10

• -1±√10

Tags

CCSS.HSA-REI.B.4B

CCSS.HSN.CN.C.7

Solve for x: 

(Hint: Use Quadratic Formula)

• 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 by the method of your choice

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 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

Hint: set equation = to 0.

• A

• B

• C

• D

Tags

CCSS.HSA-REI.B.4B

CCSS.HSN.CN.C.7