Processing math: 100%
Home
Book
Learn
Library
Practice
Contact
Log In
PolynomialAndEquation
PolynomialAndEquation
2015
Problem - 2171
Let
x
,
y
and
z
be real numbers such that
x
2
+
2
(
y
−
1
)
(
z
−
1
)
=
12
y
2
+
2
(
z
−
1
)
(
x
−
1
)
=
6
z
2
+
2
(
x
−
1
)
(
y
−
1
)
=
9
Find all the possible values of
x
+
y
+
z
.
report an error