If (x+y)=3(x-y)then find the value of 3xy÷2(x2-y2)

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Grade Select Grade8 grade maths

If (x+y)=3(x-y)
then find the value of 3xy÷2(x²-y²)

Md Zuhair

11 Years agoGrade Select Grade

3 Answers

Ravi

11 Years ago

Let x-y=u
x+y=v

So, u=3v...(I)
Also, (x²-y²)=ab
xy=(v²-u²)/4...(II)

Use i and II in the given expression to get the value of the expression.
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Ravi

11 Years ago

Ravi

11 Years ago

Let x-y=u
x+y=v

So, u=3v...(I)
Also, (x2-y2)=ab
xy=(v2-u2)/4...(II)

Use i and II in the given expression to get the value of the expression.
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