Which of these expressions cannot be simplified by combining like terms? 6fg3+4−4f2g2+f3g−12 6fg3+2f(2fg)+4f2g−10 6fg3+5f2g2+f3g−7 6f3g3+7f2g2+4f3g3−10fg

Solution:

An expression is said to be like, if there are only constants term in it, otherwise degree of variables in two distinct terms are same.

Starting from option (1)

1. As, 4 and -12 are like terms, they are combined to get  -8.

2. As, 2 f( 2 f g) and are like terms, so they can be combined to get  .

3.

as,there are no like terms, so, we cannot simplify this expression.→→→Correct Option,This expressions Cannot be simplified by combining like terms

4. As, are like terms.They can be combined to get a unique term.

the central idea is that:

individuals should refuse to cooperate with institutions they believe unjust.

thoreau felt  that governments were more often agents of corruption than justice, even democracies, and that just because the majority feels a certain way does not make it just or correct in absolute terms. he uses the fact that slavery exists in our democracy to support this idea.

he goes on to say that, as a result, people should live true to their own internal laws regarding right and wrong, as a product of reflection and a moral life, rather than following every law that society imposes. 

step-by-step explanation: