Solving Quadratics with Quadratic Equation

If b²-4ac is negative, the quadratic equation has:

• Two real solutions that are different

• Two imaginary solutions that are different

• One real solution

• One imaginary solution

Tags

CCSS.HSA-REI.B.4B

If b²-4ac is 0, the quadratic equation has:

• Two real solutions that are different

• Two imaginary solutions that are different

• One real solution

• One imaginary solution

Tags

CCSS.HSA-REI.B.4B

What are the zeros of the function f(x) = x² + 64?

• -8 and 8

• -8i and 8i

• (-√8) i and (√8) i

• -√8  and √8

Choose the best method to solve this quadratic:

​ (a)  

-3 = 4x² + 9x

• Quadratic Formula

• Square Roots

• ZPP

Tags

CCSS.HSA-REI.B.4B

Choose the best method to solve this quadratic:

​​ (a)  

x² + 8x - 13 = 0

• Square Roots

• ZPP

• Quadratic Formula

Tags

CCSS.HSA-REI.B.4B

Choose the best method to solve this quadratic:

​ ​ (a)  

x² = - x + 1

• Quadratic Formula

• ZPP

• Square Roots

Tags

CCSS.HSA-REI.B.4B

Choose the best method to solve this quadratic:

​ ​ ​ (a)  

x² - 8x - 5 = 0

• ZPP

• Square Roots

• Quadratic Formula

Tags

CCSS.HSA-REI.B.4B

How many solutions are there?

• 0

• 1

• 2

• Cannot be determined

Choose the best method to solve this quadratic:

​ (a)  

3x² - 21 = 3

• Square Roots

• ZPP

• Quadratic Formula

Tags

CCSS.HSA-REI.B.4B

Which method of solving quadratics would you use to solve the following:

• Completing the Square

• ZPP

• Square Roots

Tags

CCSS.HSA-REI.B.4B