Question

X^2+Y^2=29,xy=2 find the value of x-y... Pls quick

Answer 1

x-y is 5
let (x-y)^2 be a^2
=>x^2+y^2-2xy= a^2
29-4=a^2=25
=>(x-y)^2=25
therefore, x-y is 5
all the best

Answer 2

Answer is 5

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