Find the value of x2+y2 if x+y=15 and xy=10
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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.
RESULT :
x^2 + y^2 = 34
Read more on Brainly.in - https://brainly.in/question/1059715#readmore
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.
RESULT :
x^2 + y^2 = 34
Read more on Brainly.in - https://brainly.in/question/1059715#readmore
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