7B-5 Day 1 Practice

What is the positive solution to this equation?

 $-4x^2+324=0$  

What is the negative solution to this equation?

 $3x^2+39x=0$  

What is the positive solution to  $5x^2-39x-8=0?$  

What is the negative solution to  $-x^2+2x+121=2x?$  

Which statement about the quadratic equation below is true?

 $-2x^2+46x-5=-5$  

• There are no real solutions. 

• There are infinitely many solutions. 

•  $x=0$  and  $x=23$  are the only solutions. 

•  $x=23$  is the only solution. 

What are the solutions to  $\left(5x-2\right)\left(2x+9\right)=0?$  

•  $\frac{5}{2}$  and  $-\frac{2}{9}$  

•  $\frac{2}{5}$  and  $-\frac{9}{2}$  

•  $-\frac{2}{5}$  and  $\frac{9}{2}$  

•  $-\frac{5}{2}$  and  $\frac{2}{9}$