Write a sentence explaining why all solutions of rational equation must be checked

  Some found solutions may be extraneous, so they must all be checked in the original equation.

Step-by-step explanation:

All "solution" values that make any denominator of a rational expression zero must be excluded from the solution set. Every solution must be checked to make certain it is not excluded.

answer: no, but if it does it's a obvious pattern.

step-by-step explanation:

10 down (bang1)

5 up

5down (2)

2.5 up

2.5 down (3)

1.25 up

1.25 down (4)

now add them up : )

hoped i lol