Solve Quadratics (Factor, C.t.S)

Find the zeros of this quadratic.

• b=4/5, b=3
• b=4, b=-3
• b=1/5, b=3
• b=4/5, b=-3

Tags

CCSS.HSA-REI.B.4B

• -2, 4
• -8
• ±8
• No real solution

Tags

CCSS.HSA-REI.B.4B

Find the solutions by factoring

3x² - 8x+4=0

• x= {4/3,1}

• x= {2/3,2}

• x= {-1,-4/3}

• x = {-2,-2/3}

Solve by completing the square:

k² − 12k + 23 = 0

• {6 + √13, 6 - √13}

• -6 + √13, -6 - √13

• {6 + √59, 6 - √59}

• {-6 + √59, -6 - √59}

Find the equivalent form, having completed the square:

x² + 6x = 5

• (x + 3)² = 5

• (x + 3)² = 14

• (x + 6)² = 9

• (x + 6)² = 14

When factoring

x² - 4x + 4 = 20,

what goes in the blank?

(x - __ )² = 20

What should be added to both sides of the following equation to complete the square?

x² + 12x = 5

For the following equation to be solved by completing the square...

If v² + 6v − 59 = 0

v² + 6v + 9 = ___

Given the equation  $x^2+18x=0$  how do you find the number to add to both sides to help you complete the square?  

• Divide 18 by 2, then square that number and add it to both sides of the equation

• Square 18 and then add it both sides of the equation

• It already is a perfect square

• Subtract 18x from both sides and then divide both sides by x to find the answer

Tags

CCSS.HSA-REI.B.4B

Type the number that goes in the blank for the given process below:

 $x^2+10x=31$  

 $\left(x+5\right)^2=$  _____