Solving Quadratic Equations HWA

Solve by factoring:

x² + 13x + 12 = 0

• x = -12, -1

• x = 12, 1

• x = 13, 1

• x = -13, -1

Solve the following quadratic equation by factoring:
 $2x^2=5x-2$  

•  $x=\frac{-1}{2}$  & $x=-2$  

•  $x=-1$  & $x=-4$  

•  $x=4$  & $x=1$  

•  $x=\frac{1}{2}\ \&\ x=2$  

What is the first step to solving THIS equation by completing the square?
a² + 10a + 21 = 0

• Set the equation equal to zero
• Divide 10 by 2 and add the result to both sides
• Add a² and 10a together
• Subtract the 21

Tags

CCSS.HSA-REI.B.4B

Solve the following quadratics equation by completing the square...

x² + 4x + 1 = 0

• x = -2 ± √3

• x = -3 ± √2

• x = 2 ± √3

• x = 2 ± √2

Tags

CCSS.HSA-REI.B.4B

Solve the following quadratics equation by completing the square...

x² - 6x + 2 = 0

• x = -3 ± √7

• x = 3 ± √7

• x = 7 ± √3

• x = -7 ± √3

Tags

CCSS.HSA-REI.B.4B

Solve by taking square roots.
 $\left(x-1\right)^2=6$  

•  $\left\{\pm\sqrt{6}-1\right\}$  

•  $\left\{1\pm\sqrt{6}\right\}$  

•  $\left\{37\right\}$  

•  $\left\{1\pm\sqrt{3}\right\}$   

Solve by taking square roots:

2x² + 3 = 101

• x = + 7

• x = + 8

• x = + 9

• x = + 10

Use the quadratic formula: 0 = -x² - 5x + 12

• No Real Solution

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