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Aloiza [94]
3 years ago
11

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

Mathematics
1 answer:
olga nikolaevna [1]3 years ago
6 0
  • <em>Answer:</em>

<em>x³ + x²y - xy² - y³</em>

  • <em>Step-by-step explanation:</em>

<em>Hi there !</em>

<em>(x − y)(x² + 2xy + y²) =</em>

<em>= x(x² + 2xy + y²) - y(x² + 2xy + y²)</em>

<em>= x³ + 2x²y + xy² - x²y - 2xy² - y³</em>

<em>= x³ + x²y - xy² - y³</em>

<em>Good luck !</em>

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