(4х^-1)-(9x^3+5)-(6x^3-1)^2

(4x^2-1) – (9x^3+5) – (6x^3-1)^2=

=4x^2-1-9x-5-(36x^6-12x^3+1)=

=4x^2-9x^3-6-36x^6+12x^3-1=

=-36x^6+4x^3+4x^2-7