`x+y=9, x y=14` の場合は `x-y` を求めます
`5x+4y=14` かつ `4x+5y=13` の場合の `x-y` の値を求めます。
if x-y=9 and xy=16 , find the value of x²+y²
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x+y=4 かつ xy=2 の場合、x^4 + y^4 を求めます。
Find x^³-y^3, if x - y = 5 and xy = 14
gojo x yn
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If (x+y)=12 and xy=14 find the value of x2+y2
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