MIT 2023 Quarterfinals #1-1

[@theelk801]

it’s probably faster to start by multiplying out the (1-x)^2 and separating the 1+x^2 and -2x parts and then you’re left with x^4 and -2x^5/(1+x^2) and then a u=1+x^2 sub gives you a polynomial

[@doronezri1043]

Excellent video👏👏👏 Some good old algebraic manipulations🍻

[@owlsschoolofmath9732]

Yep that’s about it! 😃🍻