When using an indirect proof, we show that the negation of the desired conclusion leads to a contradiction

True

Step-by-step explanation:

The application of an indirect proof is seen whenever we make assumptions about a given condition/statement. i.e. assuming what we are about to proof is false before proving it to be true

The indirect proof method involves some steps  which are

b

step-by-step explanation:

a difference is the result of subtraction. while each of these expressions has subtraction in it, a difference will be the result when subtraction is the last operation applied in the order of operations for the expression. this means subtraction must be outside of the parenthesis. only b has this.

b). 4320 have a nice day