Question

if x-y=3 and xy=28 find the value of x²+y²​

Answer 1

Answer:

65

Step-by-step explanation:

(x-y)²=x²+y²-2xy

3²=x²+y²-2(28)

9=x²+y²-56

x²+y²=56+9

x²+y²=65

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Answer 2

Step-by-step explanation:

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