Square root of a number is 2 numbers that multiply to get 4 that are the same
first find the factors
4=2 times 2
then find the doubles and write only one from each pair
√4=2
so if you had a number like 36 then 
36=2 times 2 times 3 times 3
the doubles are 2 and 3 so 
√36=2 times 3=6
square root of 4 can be 2 or -2
        
                    
             
        
        
        
Answer:
100
Step-by-step explanation: its the same thing but in a different form
 
        
                    
             
        
        
        
<h2>please give brainliest plz follow </h2>
 
        
        
        
Answer:
x < 1/2
Step-by-step explanation:
5(2x + 1) < 10
Divide each side by 5
5/5(2x + 1) < 10/5
2x+1 < 2
Subtract 1 from each side
 2x+1-1 < 2-1
2x <1
Divide each side by 2
2x/2 <1/2
x < 1/2