<span><span><span>2<span>x^3</span></span><span><span>−2</span><span>x^2</span></span></span>+<span>3x</span></span>+<span>1 is the reduced answer</span>

The Jacobian has determinant
S=18€/5= 11.31 is the best option
The area of the red part is greater than the area of the blue part.