1. ## Cubic Equation

Let $P(x)= 4x^3-5x^2+7x-9$ use synthetic substitution to find $P(2)$

First i use synthetic substitution to get $-7$ for $P(2)$ But according to the table for the equation $2$ is supposed to equal $17$ could you explain what I did wrong?

2. Code:
2]....4....-5....7....-9
............8....6....26
---------------------
.......4....3...13....17