Math, asked by harshitvatsgreat, 7 months ago

Evaluate using identity 78 X 82

Answers

Answered by Anonymous

3

Answer:

6396

Step-by-step explanation:

→78×82

=(80−2)(80+2)

=80

2

−2

2

=6400−4

=6396

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Answered by vibhutimaheshwari03

13

Answer:

6396

Step-by-step explanation:

(80-2)(80+2) -----> (a-b)(a+b)

(80)^2 - (2)^2 -----> (a^2 - b^2)

6400 - 4

6396

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