Answer:
The expression in standard form will be
Explanation:
We have given polynomial
![(x^2+7x-12)(x^2-9x+1)](https://img.qammunity.org/2020/formulas/mathematics/high-school/vnwrr146d1muukqtdh3glwcjret2mbkk0p.png)
We have to write the given polynomial in standard form
For writing in standard form we have to first multiply then write in order
So after multiplication
![(x^2+7x-12)(x^2-9x+1)=x^4-9x^3+x^2+7x^3-63x^2+7x-12x^2+108x-12=x^4=2x^3-50x^2+115x-12](https://img.qammunity.org/2020/formulas/mathematics/high-school/krxkj2wxh5r91qkjm78h3hcmcr46bk0s2j.png)
So the expression in standard form will be
![x^4=2x^3-50x^2+115x-12](https://img.qammunity.org/2020/formulas/mathematics/high-school/qjrlr7930l3n7gbbwhpr7e2udxow6qn0la.png)