Question

using identity find 396×404.​

Answer 1

Answer:

159984

Step-by-step explanation:

396×404

=(400-4)(400+4)

=(400)^2 - (4)^2 { (a+b)(a-b) = a^2-b^2}

=160000-16

=159984

Answer 2

Given,

=396×404

=(400-4)(400+4)

=400²-4²

=160000-16

=159984

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