-x^2+2x+3=x^2-2x+3  add x^2 to both sides
2x+3=2x^2-2x+3  subtract 2x from both sides
3=2x^2-4x+3  subtract 3 from both sides
2x^2-4x=0  factor
2x(x-2)=0
So x=0 and 2
        
                    
             
        
        
        
Answer:
Tim has more
Step-by-step explanation:
41/45 when you type it into a calculator is 91% and 91%>80%
 
        
             
        
        
        
4x+4y=12
 (-4y) (-4y)
4x= 12-4y
Divide 4
12-4y/4= x
I really hope it makes sense
        
             
        
        
        
B; make sure to make the denominators equal before adding