Given:
Trinomial ![x^2+12x+32](/tpl/images/0563/1750/d50a3.png)
To find:
Binomial factor of the trinomial
Solution:
Given trinomial is
.
Let us factor this trinomial.
12x can be written as 4x + 8x.
![x^2+4x+8x+32=0](/tpl/images/0563/1750/bf7f3.png)
Take out x common in 1st two terms and 8x common in next two terms.
![x(x+4)+8(x+4)=0](/tpl/images/0563/1750/3fcb3.png)
Make sure that both brackets have common term and take that common from both.
![(x+4)(x+8)=0](/tpl/images/0563/1750/9dfdf.png)
and ![x+8=0](/tpl/images/0563/1750/d13a3.png)
These are binomial factors of the given trinomial.
In the option, we have x + 4 only.
Therefore x + 4 is a binomial factor of the trianomial x² + 12x + 32.