Math, asked by ynitika54, 7 months ago

If x+y = 8 and 2y = 15 then x^2+y^2

Answers

Answered by ashauthiras
5

Answer:

GIVEN :

x + y = 8

xy = 15.

Required To Find : x^2 + y^2.

SOLUTION :

we know that,

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

x^2 + y^2 = ( x + y )^2 - 2xy

8^2- 2×15

= 64 - 30

= x^2 + y^2 = 34.

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