Math Fun Library 


Question : 
What is 'Change of Signs' ? 
Answer : 
If a bracket is preceded by a minus sign then all the signs inside a bracket change from  to + or + to  when the bracket
is removed. A plus sign in front of a bracket causes no change of sign inside the bracket when it is removed. 
For Example : 
(6  2 + 3) becomes 6 + 2 3 but +(3  4 8) remains 348. When there is no sign of + or  in front of a term, it can
always be assumed as a plus term. 
