3x+2y=11 and xy=-1 then find (2x-3y)^2
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3x+2y=11
3x=11-2y
x=11-2y/3
xy=-1
(11-2y/3)y=-1
find y from this
and substitute in xy=-1
then in (2x-3y)²
then you will get value of (2x+3y)²
3x=11-2y
x=11-2y/3
xy=-1
(11-2y/3)y=-1
find y from this
and substitute in xy=-1
then in (2x-3y)²
then you will get value of (2x+3y)²
swayam76:
can u show the steps
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