7.1A Notes - Solving Quadratic Equations by Factoring

• 3x^2 - 17x - 56 = 0
• 3x^2 + 17x - 56 = 0
• 3x^2 + 17x + 56 = 0

• (3x + 8)(x - 7)
• (3x - 8)(x + 7)
• (x - 8)(3x + 7)
• (3x + 4)(x - 14)

• x = 0 and x = 5
• x = 8 and x = 7/3
• x = -8 and x = 3
• x = 8 and x = -7/3

• 5

• 5x

• x^2

• 15

• x=5
• x=-1
• x=8/5
• x=0 and x=-5/8