# How do you show that x+1 is a factor of #x^4+2x^3-2x^2-6x-3#?

##### 2 Answers

See explanation.

#### Explanation:

If

the sum of the coefficients

shows that 1 is a zero of #P_n. and so,

(x-1) is a factor of

Here,

By using the factor theorem

#### Explanation:

proof

Let

then

in this case

to show