Simplify: $$5x-2x+7x$$  

Simplify: $$2\left(x-4\right)$$   

Simplify: $$3x^3+2x^2+x^2-5x^2-1$$    

Simplify: $$\left(x-1\right)\left(x+2\right)$$     

After the review, how confident are you with simplifying polynomials?

$$12x^3-14x^5+18x^2-2x+3$$  

$$18x^3-12x^4+3x-2x^2-5$$  

$$\left(x+3\right)^2$$  

$$25x-18x^3+20-7x^2$$  

$$12x^3-14x^5+18x^2-2x+3$$  

$$18x^3-12x^4+3x-2x^2$$  

$$\left(x+3\right)^2$$   

$$25x-18x^3+20-7x^2$$    

$$8z^2-52xyz^2+3x$$  

  $$3xy-2y^2$$  

  $$3xy^2$$   

After today's session, how confident are you with basic concepts of polynomial expressions? (4 being the highest and 1 being the lowest)