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x^{2}-xy+\frac{1}{4}y^{2}+\left(x+\frac{1}{2}y\right)^{2}+2\left(x-\frac{1}{2}y\right)\left(x+\frac{1}{2}y\right)
Usar teorema binomial \left(a-b\right)^{2}=a^{2}-2ab+b^{2} para expandir \left(x-\frac{1}{2}y\right)^{2}.
x^{2}-xy+\frac{1}{4}y^{2}+x^{2}+xy+\frac{1}{4}y^{2}+2\left(x-\frac{1}{2}y\right)\left(x+\frac{1}{2}y\right)
Usar teorema binomial \left(a+b\right)^{2}=a^{2}+2ab+b^{2} para expandir \left(x+\frac{1}{2}y\right)^{2}.
2x^{2}-xy+\frac{1}{4}y^{2}+xy+\frac{1}{4}y^{2}+2\left(x-\frac{1}{2}y\right)\left(x+\frac{1}{2}y\right)
Combina x^{2} e x^{2} para obter 2x^{2}.
2x^{2}+\frac{1}{4}y^{2}+\frac{1}{4}y^{2}+2\left(x-\frac{1}{2}y\right)\left(x+\frac{1}{2}y\right)
Combina -xy e xy para obter 0.
2x^{2}+\frac{1}{2}y^{2}+2\left(x-\frac{1}{2}y\right)\left(x+\frac{1}{2}y\right)
Combina \frac{1}{4}y^{2} e \frac{1}{4}y^{2} para obter \frac{1}{2}y^{2}.
2x^{2}+\frac{1}{2}y^{2}+\left(2x-y\right)\left(x+\frac{1}{2}y\right)
Usa a propiedade distributiva para multiplicar 2 por x-\frac{1}{2}y.
2x^{2}+\frac{1}{2}y^{2}+2x^{2}-\frac{1}{2}y^{2}
Usa a propiedade distributiva para multiplicar 2x-y por x+\frac{1}{2}y e combina os termos semellantes.
4x^{2}+\frac{1}{2}y^{2}-\frac{1}{2}y^{2}
Combina 2x^{2} e 2x^{2} para obter 4x^{2}.
4x^{2}
Combina \frac{1}{2}y^{2} e -\frac{1}{2}y^{2} para obter 0.
x^{2}-xy+\frac{1}{4}y^{2}+\left(x+\frac{1}{2}y\right)^{2}+2\left(x-\frac{1}{2}y\right)\left(x+\frac{1}{2}y\right)
Usar teorema binomial \left(a-b\right)^{2}=a^{2}-2ab+b^{2} para expandir \left(x-\frac{1}{2}y\right)^{2}.
x^{2}-xy+\frac{1}{4}y^{2}+x^{2}+xy+\frac{1}{4}y^{2}+2\left(x-\frac{1}{2}y\right)\left(x+\frac{1}{2}y\right)
Usar teorema binomial \left(a+b\right)^{2}=a^{2}+2ab+b^{2} para expandir \left(x+\frac{1}{2}y\right)^{2}.
2x^{2}-xy+\frac{1}{4}y^{2}+xy+\frac{1}{4}y^{2}+2\left(x-\frac{1}{2}y\right)\left(x+\frac{1}{2}y\right)
Combina x^{2} e x^{2} para obter 2x^{2}.
2x^{2}+\frac{1}{4}y^{2}+\frac{1}{4}y^{2}+2\left(x-\frac{1}{2}y\right)\left(x+\frac{1}{2}y\right)
Combina -xy e xy para obter 0.
2x^{2}+\frac{1}{2}y^{2}+2\left(x-\frac{1}{2}y\right)\left(x+\frac{1}{2}y\right)
Combina \frac{1}{4}y^{2} e \frac{1}{4}y^{2} para obter \frac{1}{2}y^{2}.
2x^{2}+\frac{1}{2}y^{2}+\left(2x-y\right)\left(x+\frac{1}{2}y\right)
Usa a propiedade distributiva para multiplicar 2 por x-\frac{1}{2}y.
2x^{2}+\frac{1}{2}y^{2}+2x^{2}-\frac{1}{2}y^{2}
Usa a propiedade distributiva para multiplicar 2x-y por x+\frac{1}{2}y e combina os termos semellantes.
4x^{2}+\frac{1}{2}y^{2}-\frac{1}{2}y^{2}
Combina 2x^{2} e 2x^{2} para obter 4x^{2}.
4x^{2}
Combina \frac{1}{2}y^{2} e -\frac{1}{2}y^{2} para obter 0.