The solution of the math real number calculation problem in the first volume of the second day of junior high school
The operation of real numbers is the same. The key of secondary roots is to merge similar secondary roots.
( 10√3-6√2)-(4√2-3√3)= 10√3-6√2-4√2+3√3
=( 10+3)√3+(-6-4)√2
= 13√3- 10√2