# How do you use synthetic substitution to find f(-2) for #f(x) = x^4 - 4x^3 - 4x + 6#?

##### 1 Answer

If

#### Explanation:

In performing synthetic substitution:

For each column, the top 2 numbers are added to give a third number in that column.

The third number in that column is multiplied by the evaluation value and the product is written as the second number in the next column.

When the last column has bee processed, the last sum (the third number in the last column) is the value of the polynomial at the evaluation value.