Homework #6

Solve by factoring: x² = 9x - 20

• x = -4 and x = -5

• x = 20 and x = -9

• x = 4 and x = 5

• x = -4 and x = 5

Solve by factoring:  4x² + 11x - 3 = 0

• x = -3/4 and x = -1
• x = 4 and x = 3
• x = 1/4 and x = -3
• x = -1/4 and x = 3

Solve by factoring

12x² + 8x

• x = 0, -2/3

• x = 0

• x = 3/2, 0

• x = 4

Solve by factoring

20x² + 100x

• x = 0 and -5

• x = 5 and 0

• x = 0

• x = 20 and 4

Solve:   $5x^2-45=0$  

•  $x=3$  

•  $x=-3$  

•  $x=3$  and  $x=-3$  

•  $x=0$  ,  $x=3$  , and  $x=-3$