Question

Use identity to solve: 105× 98




simple multiple kiya hua nahi chaiye....give the ans with identity..
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Answer 1

Answer:

(100 + 5) × (100 - 2)

(100)² + 100(5 - 2) + 5 × (-2)

10000 + 500 - 200 -10

10500-210

10390 Ans.

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