3 years ago

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

1 answer:

3 0

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

Step-by-step explanation:

Suppose the missing polynomial be f(x)

So, we can write

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

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