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· poly-3
Polynomials · Symmetric identities
AMC 10 style
●●●○○ 5/10
~3 min
⏱ 0:00
If
x
2
+
y
2
=
25
x^2 + y^2 = 25
x
2
+
y
2
=
25
and
x
+
y
=
7
x + y = 7
x
+
y
=
7
, what is
x
y
xy
x
y
?
identities
symmetric
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