2YQuiz 03.07

Find the discriminant for
 $x^2-4x-7=0$  

•  $+11$  

•  $-11$  

•  $+44$  

•  $-44$  

Find the number and type of solutions for
 $x^2-4x-7=0$  

• No Solution

• 1 Real Solution

• 2 Real Solutions

• 2 Complex Solutions

Find the solutions for
 $x^2-4x-7=0$  

•  $2\pm\sqrt{44}$  

•  $\frac{2\pm\sqrt{44}}{4}$  

•  $2\pm\sqrt{11}$  

•  $\pm\sqrt{11}$  

Find the discriminant for
 $x^2-5x=-10$  

•  $+15$  

•  $-15$  

•  $+65$  

•  $-65$  

Find the number and type of solutions for $x^2-5x=-10$   

• No Solution

• 1 Real Solution

• 2 Real Solutions

• 2 Complex Solutions

Find the solutions for $x^2-5x=-10$  

•  $\frac{-5\pm i\sqrt{15}}{2}$  

•  $\frac{5\pm i\sqrt{15}}{2}$  

•  $5\pm i\sqrt{15}$  

•  $\frac{5\pm\sqrt{15}}{2}$  

Find the discriminant for
 $-2x^2+6=-4x+15$  

•  $+14$  

•  $-14$  

•  $+56$  

•  $-56$  

Find the number and type of solutions for $-2x^2+6=-4x+15$  

• No Solution

• 1 Real Solution

• 2 Real Solutions

• 2 Complex Solutions

Find the solutions for $-2x^2+6=-4x+15$  

•  $\frac{-4\pm\sqrt{56}}{4}$  

•  $\frac{2\pm i\sqrt{14}}{2}$  

•  $\frac{-2\pm i\sqrt{14}}{2}$  

•  $\frac{4-i\sqrt{14}}{2}$  

Find the discriminant for
 $5x^2=-50x-125$  

•  $+2500$  

•  $-5000$  

•  $+5000$  

•  $0$