These are the questions i cannot seem to answers from my review, any help would be great!

Factor the following trinomials (sanity check)

1)$\displaystyle 6t^3 - 8t^2$(COMPLETED)

2) $\displaystyle 4p^2 - 12pg - 9q^2$(COMPLETED)

Identify the coefficents, factors and terms and like terms for the following

3) $\displaystyle 26a^2 cd^3$(COMPLETED)

4) $\displaystyle 6(x-y) + (x+y) -3(x-y)$(COMPLETED)

Simplify

5) $\displaystyle (t - 5x) - {[(6p^2 - x) - 9 ] - (6t + p^2 - x)}$(COMPLETED)

6) Subtract $\displaystyle 5 - 3x$ from the sum of $\displaystyle 6s + 5 - 2x $and $\displaystyle 4a^2 - 5x + 2$(COMPLETED)

Multiply the folliwng expressions and reduce where possible

7) $\displaystyle (-4rs)(-3st^2)(-7rt)$(COMPLETED)

8) $\displaystyle (3x - 2)(2x^2 + x - 3)$(COMPLETED)

9) $\displaystyle (cx^3y)^5$(COMPLETED)

Divide the following expressions

10) $\displaystyle \frac{-12a^5b^4c^8}{18a^5b^2c^5}$(COMPLETED)

11) $\displaystyle \frac{a^2b^3 - 2a^3b^4 + ab + a^2b^2}{-ab}$

Factor

12) $\displaystyle 18x^2y^2 - 30x^3y^3 + 54x^3y$

13) $\displaystyle xy + x + 3y + 3$(COMPLETED)