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Difference between two numbers is 9 and difference between their squares is 981. Lowest of the two numbers is-
Solution
Let the two numbers be a and b (a > b)a − b = 9 ——(1)a2 − b2 = 981(a − b) (a + b) =...
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a2 − b2 = (a − b) (a + b)
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