Answer:
![P(x)=x^4-3x^3+x^2-4](https://img.qammunity.org/2022/formulas/mathematics/high-school/xkudxhl39k2d45n310isms9kpx1ami4np3.png)
(This is the option found in the lower-left corner)
Explanation:
When given the following functions,
![R(x)=2x^4-3x^3+2x-1](https://img.qammunity.org/2022/formulas/mathematics/high-school/h3xq7td4hcv9di3ym0w9fyt5jbxbcr176i.png)
![C(x)=x^4-x^2+2x+3](https://img.qammunity.org/2022/formulas/mathematics/high-school/pnxwlw2sr6pif7ee7o9uaz8jdemajljjl8.png)
The problem asks one to find (
), moreover, one is given the following information,
![(P(x))=(R(x))-(C(x))](https://img.qammunity.org/2022/formulas/mathematics/high-school/lrml7udkwrjzd32yx07s3i8gi56h700q41.png)
Substitute,
![P(x)=(2x^4-3x^3+2x-1)-(x^4-x^2+2x+3)](https://img.qammunity.org/2022/formulas/mathematics/high-school/409hyqiewjbgy0ucplsyix212sqxbk3fsv.png)
Simplify, multiply everything in the second parenthesis by the negative sign outside of it,
![P(x)=2x^4-3x^3+2x-1-x^4+x^2-2x-3](https://img.qammunity.org/2022/formulas/mathematics/high-school/zrf38ogqtlsz55ks0p21bddqkyuspn519a.png)
Combine like terms, only operations between coefficients of the same variable with the same degree (exponent) can be performed,
![P(x)=x^4-3x^3+x^2-4](https://img.qammunity.org/2022/formulas/mathematics/high-school/xkudxhl39k2d45n310isms9kpx1ami4np3.png)