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parità (x^3-2x^2-3x)/(x^2-4)

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x²+y²=162, xy=81

Solution

(

`x`=9,	`y`=9
`x`=−9,	`y`=−9

)

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Solution steps

One step at a time

[

x²+y²=162

xy=81

]

Isolare x per xy=81: x=81y ; y≠ 0

Inserisci le soluzioni x=81y in x²+y²=162

Per x²+y²=162, sostituisci x con 81y : y=9, y=−9

Inserisci le soluzioni y=9, y=−9 in xy=81

Per xy=81, sostituisci y con 9: x=9

Per xy=81, sostituisci y con −9: x=−9

Verificare le soluzioni inserendole nelle equazioni originali

Quindi, le soluzioni finali per x²+y²=162, xy=81 sono

(

`x`=9,	`y`=9
`x`=−9,	`y`=−9

)

Order of operations three/four steps without parentheses Examples

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−▭▭	<	7	8	9	÷	`AC`
+▭▭	>	4	5	6	×	☐☐☐
×▭▭	(	1	2	3	−	`x`
▭ \|▭	)	.	0	=	+	`y`

parità (x^3-2x^2-3x)/(x^2-4)

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