Answer:
The linear factorization is

Explanation:
we know that
A Linear Factorization is factored form of a polynomial in which each factor is a linear polynomial.
we have

step 1
Factor x^2
![x^(4)+36x^(2)=x^(2)[x^(2)+36]](https://img.qammunity.org/2018/formulas/mathematics/high-school/nb5sitd592gkrlo9m6eakmzjphnzc0pa51.png)
step 2
we know that

substitute
![(x)(x)[x^(2)+36]](https://img.qammunity.org/2018/formulas/mathematics/high-school/juwuhuhxuipu6fwbhr85go3uz570lpk6do.png)
step 3
Factor the sum of the squares
![[x^(2)+36]=(x+6i)(x-6i)](https://img.qammunity.org/2018/formulas/mathematics/high-school/xfta4u6kfywez3sy7s405jfh154us7uil9.png)
substitute

therefore
The linear factorization is
