need some maths help
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shizuo:
who knows
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X-y=5
Xy=84
We can use the property (x+y) *2=(x-y)*2+4xy
=5*2+4(84)=(x+y)*2
=25+336=(x+y)*2
=x+y=19
By solving x+y=19 and x-y=5
We get x=12 and y=7
Xy=84
We can use the property (x+y) *2=(x-y)*2+4xy
=5*2+4(84)=(x+y)*2
=25+336=(x+y)*2
=x+y=19
By solving x+y=19 and x-y=5
We get x=12 and y=7
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