1) Create symbolic variables x y z 2) Using the symbolic variable, create an expression : x2 + 3x + 6 3) Simplify this expression. 4) Factor this expression. 5) Using the symbolic variable, create an expression: y2 + 4y3 + 3y2 + 3y + y 6) Collect the like terms 7) Using the symbolic variable, create an expre (z + 3) (Z - 1) 8) Expand this expression. 9) Using the expression created in #2 use the solve command. 10) Using the expression created in #2. Set the equation equal to 6 and solve it. 11) Using the symbolic variables, create the following expression: yx- + zx + 6 12) Solve this expression for y and z separately. 13) Use ezplot to plot these solutions. 14) Use ezplot again but change the domain (x axis) to the range -4 to 4. 15) Using the symbolic variables, create the following expression:x3 + 2x2 - 4x + 3 16) Use the sym2poly function to create a variable called origp. 17) Use the polyder function to find the derivative of this polynomial. Save the answer in a variable called diffp. 18) Use the polyval function to find the derivative for the value x = 3 for this polynomial