You distribute the 30x to the equation in parenthesis
So basically you are doing (30x*x)+(30x*-3)
So you get 30x^2-90x
Hope this helps!
        
                    
             
        
        
        
Answer:
y= 
Step-by-step explanation:
To find inverse of something, just switch the variables 
x=y^2 
now try to solve back in terms of y
y= 
 
        
             
        
        
        
Hello!
Answer:
$2,615
Explanation:
The balance of $ 2,056 is a positive number, 
The deposits of $ 875 is a positive number. 
The withdrawal of $ 316 is a negative number.