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Factorise. a^4 –b^4 ????????????????????????????????

Factorise.
 a^4 –b^4 ????????????????????????????????

Grade:12

1 Answers

Harshit Singh
askIITians Faculty 5963 Points
3 years ago
Dear Student

a^4 –b^4
= (a^2)^2-(b^2)^2
= (a^2-b^2) (a^2+b^2)
= (a–b)(a + b)(a^2+b^2)

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