Solve Quadratics by factoring

Solve for x:

 $\left(x-5\right)\left(x+6\right)=0$  

• x = 5, 5

• x = -5, -5 

• x =  -5, -6 

• x = 5, -6

Solve for b:

 $\left(5b-4\right)\left(b+3\right)=0$  

• b=4/5, b=3

• b=4, b=-3

• b=1/5, b=3

• b=4/5, b=-3

Solve for x:

 $x^2+4x-32=0$  

• x= -8, 4

• x= 8, -4

• x= -8, -4

Solve for m:


 $3m^2+9m-30=0$  

• m= 2, -5

• m= 5, -2

• m= -5, -2

Solve for d:
(hint: move 8d to the other side first)


 $6d^2\ +7d-2\ =\ 8d$  

• d= -2/3, 1/2

• d= 2/3, -1/2

• d= -2/3, -1/2