Question

what should be added to 2x²+3xy+3xy+y² to obtain 4x²+7xy​

Answer 1

2x² + xy - y²

Step-by-step explanation:

$\mathcal {\huge{\red{\underline{\underline{Question}}}}}$

What should be added to 2x²+3xy+3xy+y² to obtain 4x²+7xy ?

$\mathcal {\huge{\red{\underline{\underline{Solution}}}}}$

Let " a " be added to 2x²+3xy+3xy+y² + to obtain 4x²+7xy.

So , According to question;

2x²+3xy+3xy+y² + a = 4x²+7xy .

2x²+6xy +y² + a = 4x²+7xy .

a = 4x²+7xy - ( 2x²+6xy +y² )

a = 4x²+7xy - 2x²- 6xy - y²

a = 2x² + xy - y²

So the Required expression is 2x² + xy - y² .

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Hope it helps you.