7B-5 Day 2 Practice

Which statement about the quadratic equation below is true?

 $x^2-4x+4=0$  

• There are infinitely many solutions. 

• There is not solution. 

•  $x=2$  is the only solution. 

•  $x=-2$  and  $x=2$  are the only solutions. 

What are the solutions to  $4x^2-8x+5=2?$  

•  $\frac{1}{2}$  and  $\frac{3}{2}$  

•  $\frac{2}{3}$  and  $2$  

•  $-\frac{1}{2}$  and  $-\frac{3}{2}$  

•  $-\frac{2}{3}$  and  $-2$  

What are the solutions to  $5x^2+17x+5=6x?$  

•  $x=\frac{11\pm3\sqrt{7}}{10}$  

•  $x=\frac{-11\pm3\sqrt{7}}{10}$  

•  $x=\frac{11\pm\sqrt{21}}{10}$  

•  $x=\frac{-11\pm\sqrt{21}}{10}$  

What is the positive solution to  $-7x^2+56x=0?$  

What is the negative solution to  $-3x^2+192=0?$  

What is the negative solution to  $\left(x+7\right)^2-3=61?$