Question

Factories using identities of
a4-b4 ​

Answer 1

Step-by-step explanation:

$a^{4} - b^{4}$

= $(a^{2} )^{2}$ - $(b^{2} )^{2}$                   [∵ $a^{2} - b^{2} = (a+b) (a-b)$]

= $(a^{2} - b^{2}) (a^{2} + b^{2} )$

= $[(a)^{2} - (b)^{2} ] (a^{2} + b^{2} )$          [∵ $a^{2} - b^{2} = (a+b) (a-b)$]

= (a - b) (a + b) $(a^{2} + b^{2} )$ (Ans)

Answer 2

Step-by-step explanation:

A⁴-B⁴

(A²)² - (B²)²

( A²+B² ) ( A²-B² )

( A²+B² ) { (A+B) (A-B) }

ANS:-)

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