Question

if x-y=8,xy=2,find x square+y square​

Answer 1

Answer:

Answer is 68

Step-by-step explanation:

( x - y )² = x² + y² - 2xy

8² = x² + y² - 2 × 2

64 = x² + y² - 4

x² + y² = 64 + 4 = 68

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