The sum of polynomials involves adding the polynomials
The other polynomial is 
The sum of the polynomials is given as:

One of the polynomials is given as:

Represent the other polynomial with Q.
So, we have:

Substitute the expressions for P and Sum

Make Q the subject

Evaluate like terms

Hence, the other polynomial is 
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I am all yours, just reply with the expression.
Answer:
Everything
Step-by-step explanation:
We can keep every things in the blank boxes.
Answer:
i dont know what you mean but
3x(4x-3) simplified is 12x - 4 or 12x+(-4)