3.07 Solve by Factoring

Solve by factoring.

 $x^2-4x=0$  

• x = {0, 4}

• x = {-4, 0}

• x = {4}

• x = {-4}

Solve by factoring.

 $10x^2=6x$  

• x = {0, 3/5}

• x = {0, 5/3}

• x = {-3/5, 0}

• x = {-3/5, 3/5}

Solve by factoring.

 $x^2-36=0$  

• x = {-6, 6}

• x = {-6}

• x = {6}

• x = {0, 36}

Solve by factoring.

 $16x^2=81$  

• x = {-9/4. 9/4}

• x = {-4/9, 4/9}

• x = {9/4}

• x = {4/9}

Solve by factoring.

 $x^2+12x+27=0$  

• x = {-9, -3}

• x = {-9, 3}

• x = {-3, 9}

• x = {3, 9}

Solve by factoring.

 $x^2-4x=77$  

• x = {-7, 11}

• x = {-11, 7}

• x = {7, 11}

• x = {-11, -7}

Solve by factoring.

 $x^2=x+30$  

• x = {-5, 6}

• x = {-6, 5}

• x = {-6, -5}

• x = {5, 6}

Solve by factoring.

 $x^2+8x-65=x-5$  

• x = {-12, 5}

• x = {-5, 12}

• x = {-12, -5}

• x = {5, 12}

Solve by factoring.

 $2x^2+6x-80=0$  

• x = {-8, 5}

• x = {-5, 8}

• x = {-8, -5}

• x = {5, 8}

Solve by factoring.

 $5x^2+11x+2=0$  

• x = {-2, -1/5}

• x = {1/5, 2}

• x = {-5, -2}

• x = {-2, 1/5}