Answer:
This skill will come in handy when working with word problems or real life situations. 
Step-by-step explanation:
 
        
             
        
        
        
Answer:
=−2x−5y
Step-by-step explanation:
Let's simplify step-by-step.
6x−5y−12x+4x
=6x+−5y+−12x+4x
Combine Like Terms:
=6x+−5y+−12x+4x
=(6x+−12x+4x)+(−5y)
=−2x+−5y
 
        
             
        
        
        
15 if its only asking for the positive factors
 
        
                    
             
        
        
        
"polynomial function f(x) has a leading coefficient of 1"
So because of that, we can eliminate A and B.
Now we have "root –5 with multiplicity 3"
That's just product of three factors (x+5)
So D is wrong.
We are left with the only possible correct option C.
C is f(x)= (x + 5)(x + 5)(x + 5)(x + 4)(x – 2)(x – 9)<span> 
Shoutout to: @Geerky42
Answer is: C: f(x)= (x+5)(x+5)(x+5)(x+4)(x-2)(x-9)
Have an amazing day!
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