Question

find the value using proper identity 68×72​

Answer 1

Answer:

The answer is 4896

Step-by-step explanation:

         68

     ×  72                                                                                                                  ___________

       136

+   476×

___________

    4896

                OR

1 ) 68 × 72

✴ ( 70 - 2 ) ( 70 + 2 )

✔ using identity ( a - b ) ( a + b ) = a^2 - b^2

✴ ( 70 )^2 - ( 2 )^2

✴ 4900 - 4

➡ 4896

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Answer 2

Here is ur answer :-

1 ) 68 × 72

✴ ( 70 - 2 ) ( 70 + 2 )

✔ using identity ( a - b ) ( a + b ) = a^2 - b^2

✴ ( 70 )^2 - ( 2 )^2

✴ 4900 - 4

➡ 4896

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