Question

If x+y=11 and xy=24, then x^2+y^2=?​

Answer 1

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Answer 2

Answer:

81

Step-by-step explanation:

1. x+y=11----(1)
2. xy=24 ---(2)
3. by solving simultaneous equations
4. x=3,y=8
5. x^2+y^2=3^2+8^2=9+72=81