(a-1)^2-4*(a+1)^3

(a-1)^2-4*(a+1)^3=a^2-2a+1-4*(a^3-3a^2+3a-1)=a^2-2a+1-4a^3+12a^2-12a+4=-4a^3 + 13a^2 -14a + 5

(a-1)²-4*(a+1)³ = a²-2a+1-4*(a³-3a²+3a-1) = a²-2a+1-4a³+12a²-12a+4 = -4a³+13a²-14a+5

(a-1)^2-4*(a+1)^3= =a^2-2a+1-4*(a^3-3a^2+3a-1)= =a^2-2a+1-4a^3+12a^2-12a+4= =-4a^3 + 13a^2 -14a + 5