Answer:
24
Step-by-step explanation:
78-30=48
48/2=24
each one is 24kg
1)
is simplified into 
2)
is simplified into 
3)
is simplified into 
4)
is simplified into 
5)
is simplified into 
Step-by-step explanation:
We need to solve the polynomials.
1) 
Solving:

So,
is simplified into 
2) 
Solving:

Expanding:

So,
is simplified into 
3) 
Solving:

Expanding:

So,
is simplified into 
4) 
Solving:

Expanding:

SO,
is simplified into 
5) 
Solving:

Expanding:

So,
is simplified into 
Keywords: Solving Polynomials
Learn more about solving Polynomials at:
#learnwithBrainly
Answer:
Yes
Step-by-step explanation: