the sum of two numbers is 8 and the difference at their square is 39 . find the number
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Step-by-step explanation:
x + y = 8
x^2 - y ^2 = 39
( x+y ) ( x - y ) = 39
x-y = 39/8
2x = (64+39)/8
x = 103/16
y = 8 - 103/16
y = 25/16
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