Question

15. What must be subtracted from x² + y + 1 to obtain
x² - y?​

Answer 1

Step-by-step explanation:

(x²+y+1)-(x²-y)

=x²+y+1-x²+y

=2y+1

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Answer 2

$\implies\texttt{Answer :}$

$\Leftrightarrow\texttt{Suppose \: polynomial \: is a}$

$({x}^{2} + y + 1) - a = {x}^{2} - y$

${x}^{2} + y + 1 - {x}^{2} + y = a$

$a = 2y + 1$

$\texttt{Hope \: it \: helps}$

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