Question

9. If x + y = 9 and xy = 16, find the value of (x²+y²).


plz do it in copy ​

Answer 1

(x+y)²= x²+y²+2xy

put x+y=9 and xy=16

(9)² =x²+y²+2(16)

81 =x²+y²+32

81-32=x²+y²

49 =x²+y²

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Hope it helps....

Answer 2

ans is coming 49

hope it helps