5, 10, 15, 20. i think that's what it means.get a second opinion.
        
             
        
        
        
(x - 6) * 2
I'm assuming this is the expression that you typed out, if it isn't, please let me know in the comments :)
Use the distributive property:
= 2(x) - 2(6)
Multiply and simplify
= 2x - 12
This should be the expression that is equivalent to the original. Let me know if you need any clarifications, thanks!
 
        
             
        
        
        
Q^2 - 125 = 0
q^2 = 125
q = +/- sqrt 125  =    11.18, -11.18
        
             
        
        
        
Answer:
not equal no property shown