(2x,x+y)=(y,9),find the value of x and y.please give full process
Answers
Answered by
0
Answer:
Step-by-step explanation:
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
1
Step-by-step explanation:
9
are friends with team mates who are the rectangular of a given time nhi h and the other two places are
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