Test #4 : Solving Quadratics

Use the Zero Product Property to solve for the values of x.

 $\left(x+2\right)\left(x-3\right)=0$  

• 2 and 3

• -2 and -3

• 2 and -3

• -2 and 3

Tags

CCSS.HSA-REI.B.4B

Solve using the Zero Product Property:
 $\left(3x+2\right)\left(x+1\right)=0$  

•  $x=1,\ x=\frac{2}{3}$  

•  $x=-1,\ \ x=-\frac{2}{3}$  

•  $x=2,\ x=1$  

•  $x=-1,\ \ x=\frac{2}{3}$  

Tags

CCSS.HSA-REI.B.4B

Solve by taking square roots:
5m² + 1 = 6

• m = 0
• m = 1 or -1
• m = √7
• m = 7/5 m = -7/5

Tags

CCSS.HSA-REI.B.4B

Solve the quadratic by using square roots.

x² - 3 = 78

• -9,9

• 9

• -9

• -√75, √75

Tags

CCSS.HSA-REI.B.4B

When solving a quadratic by completing the square, what do you do to the b value to correctly complete the square and solve for c?

• divide it by 2 and take the square root of the result

• square it

• divide it by 2 only

• divide it by 2 and square the result

Tags

CCSS.HSA-REI.B.4B

 $z^2\ +\ 22z\ +\ c$  
What is the value of c in the quadratic to make it a perfect-square trinomial?

• 121

• 11

• 44

• 144

Tags

CCSS.HSA-REI.B.4B

 $p^2\ -\ 4p\ +\ c$  
What is the value of c in the quadratic to make it a perfect-square trinomial?
 $c\ =\left(\frac{b}{2}\right)^2$  

• -4

• 8

• 4

• 12

Tags

CCSS.HSA-REI.B.4B

Identify the 'b' value: y = 16x² -8x -24

• 16
• -8
• 8
• -24

Identify the 'a' value: y = 16x² -8x -24

• 16
• 8
• -8
• -24

Determine the values of a, b, and c for the quadratic equation:

4x² – 8x -3 = 0

• a = 4, b = -8, c = 3

• a = 4, b =-8, c =-3

• a = 4, b = 8, c = 3

• a = 4, b = 8, c = -3