Question

(a^2+b^2)(a^2-b^2).answer this question fastly​

Answer 1

Answer:

(a² + b²)(a² - b²)

by using the identity (a+b) (a-b) = a²- b²

(a²)² - (b²)²

a^4 - b^4

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Answer 2

Answer:

Step-by-step explanation:

let a^2=c,b^2=d

so, (a^2+b^2)(a^2-b^2)

= (c+d)(c- d)                                                                  [as (a+b)(a-b)=a^2-b^2]

= c^2 - d^2

= (a^2)^2 - (b^2)^2                                                        [as c=a^2, d=b^2]

= a^4 - b^4