Question

what is the sum of two consecutive even numbers the difference of whose squares is 84









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Answer 1

Answer:

Let the numbers be x and x + 2.

Then, (x + 2)² - x² = 84

4x + 4 = 84

4x = 80

x = 20

The required sum = x + (x + 2) = 2x + 2 = 42

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