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Factorise :63x²y²-7

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Factorise :63x²y²-7

Posted by Tanupreet Kaur 5 years, 1 month ago

CBSE > Class 08 > Mathematics

1 answers

Yogita Ingle 5 years, 1 month ago

a² - b² = (a - b) (a+ b)

:63x²y²-7

= 7(9x²y²- 1)

= 7 [(3xy)² - (1)²]

= 7(3xy - 1)(3xy+1)

2Thank You

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CBSE > Class 08 > Mathematics