Answer:
The factor form of
is
![(u+7)[4n^2-c]](https://img.qammunity.org/2020/formulas/mathematics/middle-school/3gjvbtbfd3e2gt3304tjj4fy0uui2cgmv3.png)
Explanation:
Given expression

We have to factorize the expression ,
Factorization is writing an expression in lowest factor form such that the product of factors gives back the original expression.
Consider given expression
Taking (u+7) common from both the terms, we get,
![4n^2(u+7)-c(u+7)=(u+7)[4n^2-c]](https://img.qammunity.org/2020/formulas/mathematics/middle-school/e85bznnl8ciifw6bf79nsde4ows5keuq4m.png)
Thus the factor form of
is
![(u+7)[4n^2-c]](https://img.qammunity.org/2020/formulas/mathematics/middle-school/3gjvbtbfd3e2gt3304tjj4fy0uui2cgmv3.png)