Fermi
·
Concept Library
·
Courses
·
Books
·
Problems
·
Simulations
·
Math Wiki
·
High School
Fermi
›
Problems
Mathematics
Mathematics
Problem
Which of the following is the correct expansion of
(
a
−
b
)
2
(a-b)^2
(
a
−
b
)
2
? a)
a
2
−
b
2
a^2 - b^2
a
2
−
b
2
b)
a
2
−
2
a
b
+
b
2
a^2 - 2ab + b^2
a
2
−
2
ab
+
b
2
c)
a
2
+
2
a
b
+
b
2
a^2 + 2ab + b^2
a
2
+
2
ab
+
b
2
d)
a
2
−
a
b
+
b
2
a^2 - ab + b^2
a
2
−
ab
+
b
2
Browse the problem library