Hi,

I hope someone can help. I'm trying to understand how a given equation matches the following function characteristics:

The equations are:

I understand that the function needs to have an odd degree, one zero at x = 2 that has a multiplicity of 2 (in order for it to "bounce back" and cross y = 2 when x = 0), and another zero at x = -1. However, I don't understand how to get to the textbook's example equation's above. Please help!

Best,

Olivia