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23 votes
23 votes
What is the missing polynomial ?-(20-4x5x^2)=20-7x^2

User Dotintegral
by
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1 Answer

8 votes
8 votes

Answer:
-2x^2-4x+40

Explanation:

Suppose the missing polynomial be f(x)

So, we can write


\Rightarrow f(x)-(20-4x+5x^2)=20-7x^2\\\Rightarrow f(x)=20-7x^2+(20-4x+5x^2)\\\Rightarrow f(x)=-2x^2-4x+40

User Arunmozhi
by
3.0k points