Question

If a²-b²=(a+b)(a-b) then what is the value of 103 multiplied by 97?​

Answer 1

Answer:

= 103 * 97

= (100+3) (100-3)

= (100)²-(3)²

= 10000-9

= 9991

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Answer 2

Answer:

9991

Step-by-step explanation:

Given,

$103 \times 97 \\ = (100 + 3)(100 - 3) \\ by \: using \: identity \: a {}^{2} - b {}^{2} = (a + b)(a - b) \\ therefore \: 100 {}^{2} - 3 {}^{2} \\ = 10000 - 9 \\ = 9991$

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