Find the value of equation given in the box,
when : x+y=7 and xy =10.​

1 thought on “Find the value of equation given in the box,<br />when : x+y=7 and xy =10.​”

1. Answer:

   x + y = 7

   squaring on both sides

   (x+y)^2 = 7^2

   (a+b)^2 = a^2 + b^2 + 2ab

   x^2 + y^2 + 2xy = 49

   x^2 + y^2 + 2(10 ) = 49

   x^2 + y^2 + 20 = 49

   x^2 + y^2 = 29

   Step-by-step explanation:

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