Math, asked by vaishnavi2542, 4 months ago

factorize y⁴- 81 ..plzz fast​

Answers

Answered by biligiri
5

Step-by-step explanation:

y⁴ - 81

=> (y²)² - (3²)²

=> (y² + 3²)(y² - 3²)

=> (y² + 9)(y + 3)(y - 3)

Identity used is x² - y² = (x + y)(x - y)

Answered by meghatomar95
3

Answer:

inst Megha_tomar_19

Step-by-step explanation:

=(y²)² - (3²)²

=(y² + 3²) (y² - 3²)

=(y² + 9) (y+3) (y-3)

=x² - y²

=(x+y) (x-y).

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