Solving Quadratics Quiz Review (Math 2)

Solve using the square root method:
 $0=3x^2-54$  

•  $x=\sqrt{18}$  

•  $x=\sqrt{18},\ x=-\sqrt{18}$  

• x = 9, x = -9

• x = 18, x = -18

Solve by factoring:

 $x^2+6x=16$ 

• x = 3, x = -2

• x = 8, x = -2

• x = -8, x = 2

• x = 4, x = -4

Solve using the quadratic formula: $0=2x^2+3x-10$  

•  $x=\frac{-3\pm\sqrt{-89}}{4}$  

•  $x=\frac{-3\pm\sqrt{-71}}{4}$  

•  $x=\frac{3\pm\sqrt{89}}{4}$  

•  $x=\frac{-3\pm\sqrt{89}}{4}$  

Pick any appropriate method to solve: $0=x^2-6x+4$  

•  $x=\frac{6\pm\sqrt{20}}{2}$  

•  $x=\frac{-6\pm\sqrt{20}}{2}$  

•  $x=\frac{6\pm\sqrt{52}}{2}$  

•  $x=\frac{-6\pm\sqrt{52}}{2}$  

Pick any appropriate method to solve: $0=3x^2+11x+6$  

•  $x=\frac{-3}{2},\ x=3$  

•  $x=\frac{2}{3},\ x=3$  

•  $x=\frac{-2}{3},\ x=-3$  

•  $x=\frac{-3}{2},\ x=-2$  

Pick any appropriate method to solve: $\left(x-2\right)^2+1=17$  

• x = 6, x = -2

• x = 4, x = - 4

• x = -6, x = 2

• x = 6

Pick any appropriate method to solve:
 $0=4x^2-2x-5$  

•  $\frac{-2\pm\sqrt{76}}{8}$  
  

•  $\frac{2\pm\sqrt{-76}}{8}$  

•  $\frac{-2\pm\sqrt{84}}{8}$  

•  $\frac{2\pm\sqrt{84}}{8}$  

Which of the following problems could be solved using the square root method? (Pick ALL that apply)

•  $0=2x^2-32$  

•  $0=x^2-6x+5$  

•  $2x^2-3x-10=0$  

•  $5=\left(x+3\right)^2-4$  

Which of the following problems could be solved by factoring?

•  $0=2x^2-32$  

•  $0=x^2-6x+5$  

•  $2x^2-3x-10=0$  

•  $5=\left(x+3\right)^2-4$  

Which of the following problems could be solved by using the quadratic formula? (Pick ALL that apply)

•  $0=2x^2-32$  

•  $0=x^2-6x+5$  

•  $2x^2-3x-10=0$  

•  $5=\left(x+3\right)^2-4$