3 years ago

Prove this polynomial identity... (x − y)(x2 + 2xy + y2)

Mathematics

1 answer:

olga nikolaevna [1]3 years ago

6 0

Answer:

x³ + x²y - xy² - y³

Step-by-step explanation:

Hi there !

(x − y)(x² + 2xy + y²) =

= x(x² + 2xy + y²) - y(x² + 2xy + y²)

= x³ + 2x²y + xy² - x²y - 2xy² - y³

= x³ + x²y - xy² - y³

Good luck !

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3 years ago

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HACTEHA [7]

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Step-by-step explanation:

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