Solve by Factoring and Complete the Square

Solve by factoring (AM)

x² + 2x - 24 = 0

• x = -6, x = 4

• x = 6, x = -4

• x = 12, x = -2

• x = 8, x = -3

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

Solve the following equation by completing the square:
n² - 2n - 3 = 0

• {3 and-1}
• {4 and -4}
• {5 and -3}
• {8 and -7}

Solve the equation by completing the square and then finding the roots. 
x²+ 6x - 4 = 36

• x = -7, 7
• x = 4, -10
• x = -4 +- √7
• x = 10, -4

Solve by factoring (GCF)

x² - 9x = 0

• 9

• 0, 9

• -9, 0

• -9

Solve by factoring (AM)

x² + 15x + 44 = 0

• {-8, 2}

• {-7, 5}

• {-11, -4}

• {-11}

Solve for the x-intercepts:

x(x - 3) = 0

• { 0, 3 }

• { 0, -3 }

• { 1, 3 }

• { 1, -3 }

• (2x+10)(2x-10)

• 2(x+5)(x-5)

• x = {-5,5}

• x = {-10,10}