Подстановка условия
[src]a^6 + a^5 + a^2*b^2 + b^4 - b^6 при a = -1/4
a^6 + a^5 + a^2*b^2 + b^4 - b^6
$$- b^{6} + b^{4} + a^{2} b^{2} + a^{6} + a^{5}$$
(-1/4)^6 + (-1/4)^5 + (-1/4)^2*b^2 + b^4 - b^6
$$- b^{6} + b^{4} + (-1/4)^{2} b^{2} + (-1/4)^{6} + (-1/4)^{5}$$
(-1/4)^6 + (-1/4)^5 + (-1/4)^2*b^2 + b^4 - b^6
$$- b^{6} + b^{4} + \left(- \frac{1}{4}\right)^{2} b^{2} + \left(- \frac{1}{4}\right)^{5} + \left(- \frac{1}{4}\right)^{6}$$
-3/4096 + b^4 - b^6 + b^2/16
$$- b^{6} + b^{4} + \frac{b^{2}}{16} - \frac{3}{4096}$$