Question

If xy is =7 and xy is=9 than (x square + y square​

Answer 1

Answer:

67

Step-by-step explanation:

x-y=7

xy= 9

As we know that

(x-y)²= x²+y²-2xy

7²+2*9= x²+y²

49+18= x²+y²

67= x²+y²

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