Fermi
·
Concept Library
·
Courses
·
Books
·
Problems
·
Simulations
·
Math Wiki
·
High School
Fermi
›
Problems
Mathematics
Mathematics
Problem
Find the centre and radius of sphere
2
(
x
−
5
)
(
x
+
1
)
+
2
(
y
+
5
)
(
y
−
1
)
+
2
(
z
−
2
)
(
z
+
2
)
=
7
2(x-5)(x+1)+2(y+5)(y-1)+2(z-2)(z+2)=7
2
(
x
−
5
)
(
x
+
1
)
+
2
(
y
+
5
)
(
y
−
1
)
+
2
(
z
−
2
)
(
z
+
2
)
=
7
Browse the problem library