Math, asked by valethuanil, 10 months ago

if x+y=8 and xy=15. find x²+y².

Answers

Answered by ujjawal3744

3

Answer:

Given

x+y = 8

and xy =15

Now (x + y) `2

= x sq +y sq +2*xy

= 8*8+2*15 (because it is given)

= 64+30=94

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