Simplify xy+x^2+2xy+y^2-3x^2

$x y + x^{2} + 2 x y + y^{2} - 3 x^{2}$

Step 1

Add $x y$ and $2 x y$ .

$x^{2} + 3 x y + y^{2} - 3 x^{2}$

Step 2

Subtract $3 x^{2}$ from $x^{2}$ .

$- 2 x^{2} + 3 x y + y^{2}$

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