Question

Evaluate: 102 × 98 ​

Answer 1

Answer:

Step-by-step explanation:

hello

Since there are 102 which is 100+2 and 98 which is 100-2

Therefore we can write it as

(100+2)×(100-2)

now here we can apply a formula ..

which is a^2-b^2 = (a+b)(a-b)

here a=100 and b =2

by using formula we get

100^2 - 2^2

10000 - 4 = 9996

hope it helps

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Answer 2

Answer:

9996

Step-by-step explanation:

now here we can apply a formula ..

which is a^2-b^2 = (a+b)(a-b)

here a=100 and b =2

by using formula we get

100^2 - 2^2

10000 - 4 = 9996