Question

what should be added to x2 + y2 to get x2 + y2 + 2xy2​

Answer 1

Answer:

+2xy2

Step-by-step explanation:

add it to get your ans

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Answer 2

Answer:

We will add $2xy^{2}$ to get the required expression.

Step-by-step explanation:

Here we have been two equations of which we have been asked to find the value that must be added to the former expression $x^{2} + y^{2}$ to get the other expression $x^{2} + y^{2} + 2xy^{2}$

Therefore for this, we will just subtract them and get the term to be added to make both of them identical.

$x^{2} + y^{2} + 2xy^{2} - ( x^{2} + y^{2} )$

⇒ $x^{2} + y^{2} + 2xy^{2} - x^{2} - y^{2}$

⇒ $x^{2} -x^{2} + y^{2} -y^{2} +2xy^{2}$

⇒ $2xy^{2}$

Hence we need to add $2xy^{2}$ to the above-given expression for getting $x^{2} + y^{2} + 2xy^{2}$