Simplify 3x + 6x 2 - 5x - x 2.

6x 2 + 2x

6x 2 - 2x

5x 2 - 2x

5x 2 + 2x

Which of the terms cannot be combined with the others?

3xy

2x

-5x

x

A1: first when solving an equation like such you have to put it in order so (^) means square or what ever power

6x^2-x^2-5x+3x then you combine terms, 6-1=5-->5x^2, - 5+3=-2-->-2x, thus making the equation 5x^2-2x so the answer is c

A2: out of the choices we can see that they all have x variables but 3xy is different from the other terms because they do not carry a y variable making 3xy the term that cannot be combined with the others