if X + Y = 12 and X Y=14 find the value of (x² + Y²)
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Answered by
402
x+y=12
(x+y)²=12² ( squaring both side )
x²+y²+2xy=144
x²+y²+2(14)=144 (xy=14)
x²+y²=144-28
x²+y²=116
(x+y)²=12² ( squaring both side )
x²+y²+2xy=144
x²+y²+2(14)=144 (xy=14)
x²+y²=144-28
x²+y²=116
Answered by
187
Hey there!!
we have ,
xy = 14
x +y = 12
Hope this helps u !!
we have ,
xy = 14
x +y = 12
Hope this helps u !!
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