Question

(a²+b²)²-4a²b² . Factorise​

Answer 1

Answer:

(a+b)(a-b)

Step-by-step explanation:

=√[ (a²+b²)² - 4a²b²]

=√[ (a^4+2a²b²+b^4 - 4a²b²]

=√[ (a^4-2a²b²+b^4]

=√[ (a²-b²]²

=a²-b²

=(a+b)(a-b)

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