Answer:

Step-by-step explanation:

Multiplying positive integer and negative integer gives a negative integer i.e ( + ) × ( - ) = ( - )

The negative and positive integers are always subtracted but posses the sign of the bigger integer

Hope I helped!
Best regards! : D
 
        
             
        
        
        
Answer:
B
Step-by-step explanation:
x/5 + 2/3x
first you multiply both denominator. 
this will be you denominator unless you can simplify it.
denominator=5 x 3X = 15X
now you times both denominator with the opposite numerator.
e.g. 5 x 2 and X x 3X.
=10 and 3X^2
now you and both numerators which is 3X^2 + 10
so the answer is b
 
        
                    
             
        
        
        
Answer:
45 is um 9x+xy-4y
Step-by-step explanation:
I did it it was a simplify type thing