Solving Polynomial Equations

Solving polynomial equations is equivalent to finding the y-intercepts of a polynomial equation.
If y = x^3-4x^2+8x-32 then to solve 0 = x^3-4x^2+8x-32 is the same as finding the x values that make y = 0. Here are two examples multiple times:

Review for test 2

 

Factoring Polynomials and Dividing Polynomials

We started by factoring a quadratic without any instruction. Here are some photos of student work and my work. Some used a "short cut" and others used area = length * width.



 

Next we divided a cubic by a linear function.