How do you simplify #5sqrt7-4sqrt7#?
Hello you can simplify this by recognizing that '4' and '5' are coefficients of the radical
In this it asks
Do it by simply subtracting
now it is
To make this more clear, we can view the coefficients in front of the radical as entities on their own or write them this way as they are notated by a coefficient;
Simply by subtracting 4 from 5, we can get an answer on how many radicals are left in the remainder as notated by
For general examples;