solve the following question 405x395
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Answered by
2
Answer:
159975 is the ans of the question
Answered by
1
Step-by-step explanation:
Using Identity => ( x + b ) ( x - b ) => x² - b²
=> Here x = 400, b = 5.
=> (400 + 5 ) ( 400 - 5)
=> 400² - 5²
=> 160000 - 25 = 159975 Ans.
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