Solve Quadratics by Factoring

x²+4x-32=0

• x= -8, 4

• x= 8, -4

• x= -8, -4

x²=18x-81

• x= -9, -9

• x= 9, 9

• x= -9, 9

4x²+7x-17=3x²+12x-3

• x= -7, -2

• x= 7, -2

• x= -7, 2

3x²+9x-30=0

• x= 2, -5

• x= 5, -2

• x= -5, -2

6x²-x-2=0

• x= -2/3, 1/2

• x= 2/3, -1/2

• x= -2/3, -1/2

x²-7x=0

• x= 0, -7

• x= 0, 7

What are the factors AND solutions of x² + 2x – 3 = 0

• (x - 2)(x + 1); x=2, x=-1
• (x + 1)(x - 3); x=-1, x=3
• (x + 2)(x - 1); x=-2, x=1
• (x - 1)(x + 3); x=1, x=-3

Given the factors below what is the quadratic equation?

• y= 2x² -5x +3
• y= 2x² +7x -3
• y= 2x² -5x -3
• y= 2x² -7x -3

What is the first step in solving 
(x + 2)(x - 3) = 0      ?

• Plug in zero for x
• Solve for x
• FOIL
• Set each binomial factor equal to zero

Solve

3x² + 5x = 12

• x = -4/3, x = 3

• x = 4/3, x = -3

• x = -1, x = 4

• x = 1, x = -4