Question

(x-y)=5 and xy=36, find the value of x2+y2.

ans-97​

Answer 1

Answer:

X-y=5________(1)

Xy=36_________(2)

From eq (1)we got.

X=y+5

Put the value of x in eq (2)

Y+5×y=36

2y=36-5

Y=31/2

Put the value of y in eq (2)

X×31/2=36

31x/2=36

36×2=31x

72=31x

X=72/31

Now put the value of x and y in x2+y2

72/31×2 +31/2×2

154/31+31

1015/31

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