Math, asked by sarah3231, 1 year ago

factorise x^4+9x^2y^2+81y^4​


praneshvijay: Hi

Answers

Answered by praneshvijay
26

Answer:

(x²+9y²)² - 9x²y²

Step-by-step explanation:

x^4+9x^2y^2+81y^4

= (x²)² + 9x²y² + (9y²)²

Which is in the form a² + ab + b²

On factorizing give s ( a+b)²-ab

Thus the answer is  (x²+9y²)² - 9x²y²

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