The difference of -12√14 - 15√14 is -27√14
Solution:
Step 1:
Take the common factor of the terms which would be:
√14 as a common
Step 2:
Factor out the unlike terms and bring the common on to the outside of the parenthesis:
√14 ( -12 -15)
Step 3:
Solve
√14 (-27)
= -27√14
