Fermi
·
Concept Library
·
Courses
·
Books
·
Problems
·
Simulations
·
Math Wiki
·
High School
Fermi
›
Problems
Mathematics
Mathematics
Problem
Factorise
−
3
x
2
+
6
x
+
9
-3x^2+6x+9
−
3
x
2
+
6
x
+
9
completely. a)
−
3
(
x
+
3
)
(
x
−
1
)
-3(x+3)(x-1)
−
3
(
x
+
3
)
(
x
−
1
)
b)
−
3
(
x
−
3
)
(
x
+
1
)
-3(x-3)(x+1)
−
3
(
x
−
3
)
(
x
+
1
)
c)
3
(
x
−
3
)
(
x
+
1
)
3(x-3)(x+1)
3
(
x
−
3
)
(
x
+
1
)
d)
−
3
x
(
x
−
3
)
-3x(x-3)
−
3
x
(
x
−
3
)
Browse the problem library