Solve Equations with Imaginary Solutions

The discriminant is

• ax² + bx + c

• b - 4ac

• b² - 4ac

• b² + 4ac

Determine the value of the discriminant and describe the number and type roots for the following:

x² + 7x + 13

• 101; 2 real roots

• 3; 2 real roots

• -101; 2 imaginary roots

• -3; 2 imaginary roots

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

• x = (2 ± 2i√10)/2

• x = (4 ± √40)/4

• x = (2 ± i√10)√/2

• x = (2 ± 2i√40)/4

• A
• B
• C
• D

• A
• B
• C
• D

• A
• B
• C
• D

The discriminant is

• aX²  + bX  +  c

• b - 4ac

• b² - 4ac

• b² + 4ac

Solve for x: 

• x = {-4, -1}

• x = {-1, -4}

• x = {2+i, 2-i}

• x = {-2+i, -2-i}

Solve for x:

• x = {-3+2i, -3-2i}

• x = {7, 6}

• x = 2±i√3

• No solution

• A
• B
• C
• D