Math, asked by dirghayu, 10 months ago

use suitable identities solve the following expression: (84)ka square

Answers

Answered by soni3754

1

Answer:

84^2

=(80+4)^2

=80^2+4^2+2×80×4

=6400+16+640

=7056

HOPE IT IS CORRECT

OR

84^2

(100-16)^2

100^2+16^2-2×100×16

10000+256-3200

10256-3200

7056

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