Fermi
·
Concept Library
·
Courses
·
Books
·
Problems
·
Simulations
·
Math Wiki
·
High School
Fermi
›
Problems
GCSE
MATHEMATICS · Subjective · GCSE · Mathematics · Number · Number
Problem
Simplify.
−
3
12
+
3
3
+
3
20
-3\sqrt{12} + 3\sqrt{3} + 3\sqrt{20}
−
3
12
+
3
3
+
3
20
Related theory
Real Number System
Surds and rationalisation
Browse the problem library