Question

(x + y) (x² - xy + y²)​

Answer 1

Answer:

Solution :

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Given :

To simplify (x + y)(x² - xy + y²)

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⇒ (x + y)(x² - xy + y²)

⇒ x(x² - xy + y²) + y(x² - xy + y²)

⇒ x³ -x²y + xy² +x²y -xy² + y³

⇒ x³ + y³ - x²y + x²y - xy² + xy²

⇒ x³ + y³    (This is actually a identity,you can use while solving problems).,.

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Answer 2

Answer:

To solve this question follow this process:-

(x+y)(x²-xy+y²)

x(x²-xy+y²)+y(x²-xy+y²)

x³-x²y+xy²+x²y-xy²+y³

x³+y³