Solving Quadratic Equations

What do you do to the b value to correctly complete the square?

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

When factoring
x² - 4x + 4 = 20,
what goes in the blank?
(x - __ )² = 20

• 4
• 2
• 8
• 20

What value of c would make this a perfect sqaure trinomial?
x² +8x + c

• 4
• 16
• 64
• -16

Complete the square.
x² + 6x + ____

• x² + 6x + 9
• x² + 6x - 36
• x² + 6x + 36
• x² + 6x - 9

Simplify √243

• 3√3

• 9√3

• 81√3

• 3√81

x² -4 = 77

• 9

• -9

• No Real Solutions

• ±9

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

• 16
• 8
• -8
• -24

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

• 16
• -8
• 8
• -24

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

• 16
• -8
• 24
• -24

In the equation
y = x² +5x +7, match each leading coefficient with its correct letter 

• a=0, b=5, c=7
• a=1, b=5, c=7
• a=7, b=5, c=1