find the value of x n y
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Answered by
6
Answer:
ANSWER
x+y=9
On squaring both sides ,
x
2
+y
2
+2xy=81
Putting value of xy = 14
x
2
+y
2
+28=81
x
2
+y
2
=81−28=53............(i)
(x−y)
2
=x
2
+y
2
−2xy
Putting xy = 14 and (i)
(x−y)
2
=53−2(14)=53−28
(x−y)
2
=25
⇒x−y=±
25
=±5
Answered by
2
Answer:
x1=1 x2=4 x3=7 y1=8 y2=11 y3=14
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