Factoring

Factor
x² + 9x - 36

• (x + 12)(x - 3)
• (x + 9)(x - 4)
• (x - 12)(x + 3)
• (x - 9)(x - 4)

What are the factors of x²+3x-40

• (x+10)(x-4)
• (x+8)(x-5)
• (x+20)(x-2)
• (x+1)(x-3)

Solve
x² + 2x - 24 = 0

• x = -6, x = 4
• x = 6, x = -4
• x = 12, x = -2
• x = 8, x = -3

2d² = 8

• 4
• -2
• -4, 4
• -2, 2

Solve
x² + 9x + 20 = 0

• x = -2, x = -10
• x = -3, x = -4
• x = -4, x = -5
• x = -4, x = -6

Solve by taking square roots:
a² + 9 = 9

• no solution
• a = 0
• a = 3 or -3
• a = 18

Solve by taking square roots:
k² - 6 = 43

• k = √37
• k = 37 or - 37
• k = 7, k = -7
• no solution

Does this graph have a maximum or a minimum?

• Maximum
• Minimum

What are the x- intercepts?

• x= 0 and x= -4
• x= 0 and x= 4
• y= 0
• x= 2

What is the y-intercept of the equation
y = 2x²+8x+3?

• (0,3)
• (3,0)
• (0,2)
• y=8