Question

using identity (a-b)square =asquare-2ab+square find the value of 98square
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Answer 1

Answer:

9604

Step-by-step explanation:

(a-b)^2 = a^2 + b^2 - 2ab

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Answer 2

Answer:

9604

Step-by-step explanation:

(98)^2

= (100-2)^2

= 100^2 -2(100)(2) + 2^2

= 10000 - 400 + 4

= 10004 - 400

= 9604

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