Find each of the following products: (x2 – xy + y2) × (x + y)

1.	Find each of the following products: (x2 – xy + y2) × (x + y)
Answer» By using horizontal method, We have; = (x² – xy + y²) × (x + y) = x(x²– xy + y²) + y(x² – xy + y²) = x³ - x²y + xy² + x²y – xy² + y³ By arranging the expression in the form of descending powers of x, We get; = (x³ + y³)

Answer»

By using horizontal method,

We have;

= (x² – xy + y²) × (x + y)

= x(x²– xy + y²) + y(x² – xy + y²)

= x³ - x²y + xy² + x²y – xy² + y³

By arranging the expression in the form of descending powers of x,

We get;

= (x³ + y³)

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