Question

13. If x+y=6 and
xy=13, find x^2 + y^2.​

Answer 1

Answer:

10

Step-by-step explanation:

x+y=6 (given)

squaring on both side

(x+y)^2=(6)^2

x^2+2xy+y^2=36

x^2+2(13)+y^2=36

x^2+26+y^2=36

x^2+y^2=36-26

x^2+y^2=10

Answer 2

Hope it helps
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