Разложение на множители
[src]
/ _______________________\ / _______________________\
| / 4 2 | | / 4 2 |
| 9 \/ 1296 - 81*c + 145*c | | 9 \/ 1296 - 81*c + 145*c |
1*(a + 0)*|a + --- + --------------------------|*|a + --- - --------------------------|
\ 2*c 8*c / \ 2*c 8*c /
$$1 \left(a + 0\right) \left(a + \left(\frac{\sqrt{- 81 c^{4} + 145 c^{2} + 1296}}{8 c} + \frac{9}{2 c}\right)\right) \left(a - \left(\frac{\sqrt{- 81 c^{4} + 145 c^{2} + 1296}}{8 c} - \frac{9}{2 c}\right)\right)$$
((1*(a + 0))*(a + (9/(2*c) + sqrt(1296 - 81*c^4 + 145*c^2)/(8*c))))*(a + (9/(2*c) - sqrt(1296 - 81*c^4 + 145*c^2)/(8*c)))
/ / 2 2\\
a*\-576*a + 145*c - c*\64*a + 81*c //
--------------------------------------
72
$$\frac{a \left(- c \left(64 a^{2} + 81 c^{2}\right) - 576 a + 145 c\right)}{72}$$
a*(-576*a + 145*c - c*(64*a^2 + 81*c^2))/72
Подстановка условия
[src]
8*a*c/9 - (64*a^2 + 81*c^2)*a*c/72 + (9*c - 64*a)*a/8 при a = -1/2
/ 2 2\
8*a*c \64*a + 81*c /*a*c (9*c - 64*a)*a
----- - ------------------- + --------------
9 72 8
$$- \frac{a c \left(64 a^{2} + 81 c^{2}\right)}{72} + \frac{8 a c}{9} + \frac{a \left(- 64 a + 9 c\right)}{8}$$
/ / 2 2\\
a*\-576*a + 145*c - c*\64*a + 81*c //
--------------------------------------
72
$$\frac{a \left(- c \left(64 a^{2} + 81 c^{2}\right) - 576 a + 145 c\right)}{72}$$
$$a = - \frac{1}{2}$$
/ / 2 2\\
(-1/2)*\-576*(-1/2) + 145*c - c*\64*(-1/2) + 81*c //
-----------------------------------------------------
72
$$\frac{(-1/2) \left(- c \left(64 (-1/2)^{2} + 81 c^{2}\right) - 576 (-1/2) + 145 c\right)}{72}$$
/ / 2 2\\
1/72*-1/2*\-576*-1/2 + 145*c - c*\64*-1/2 + 81*c //
$$\frac{1}{72} \left(- \frac{1}{2}\right) \left(- c \left(81 c^{2} + 64 \left(- \frac{1}{2}\right)^{2}\right) + 145 c - -288\right)$$
/ 2\
145*c c*\16 + 81*c /
-2 - ----- + --------------
144 144
$$\frac{c \left(81 c^{2} + 16\right)}{144} - \frac{145 c}{144} - 2$$
-2 - 145*c/144 + c*(16 + 81*c^2)/144
3 3
2 9*a*c 8*c*a 145*a*c
- 8*a - ------ - ------ + -------
8 9 72
$$- \frac{8 a^{3} c}{9} - \frac{9 a c^{3}}{8} - 8 a^{2} + \frac{145 a c}{72}$$
-8*a^2 - 9*a*c^3/8 - 8*c*a^3/9 + 145*a*c/72
Рациональный знаменатель
[src]
3 3
2 9*a*c 8*c*a 145*a*c
- 8*a - ------ - ------ + -------
8 9 72
$$- \frac{8 a^{3} c}{9} - \frac{9 a c^{3}}{8} - 8 a^{2} + \frac{145 a c}{72}$$
/ 2 2\
648*a*(-64*a + 9*c) + 4608*a*c - 72*a*c*\64*a + 81*c /
-------------------------------------------------------
5184
$$\frac{- 72 a c \left(64 a^{2} + 81 c^{2}\right) + 4608 a c + 648 a \left(- 64 a + 9 c\right)}{5184}$$
(648*a*(-64*a + 9*c) + 4608*a*c - 72*a*c*(64*a^2 + 81*c^2))/5184
Объединение рациональных выражений
[src]
/ / 2 2\\
a*\-576*a + 145*c - c*\64*a + 81*c //
--------------------------------------
72
$$\frac{a \left(- c \left(64 a^{2} + 81 c^{2}\right) - 576 a + 145 c\right)}{72}$$
a*(-576*a + 145*c - c*(64*a^2 + 81*c^2))/72
/ 3 2\
-a*\-145*c + 81*c + 576*a + 64*c*a /
--------------------------------------
72
$$- \frac{a \left(64 a^{2} c + 81 c^{3} + 576 a - 145 c\right)}{72}$$
-a*(-145*c + 81*c^3 + 576*a + 64*c*a^2)/72
/ / 2 2\\
| 145*c c*\64*a + 81*c /|
a*|-8*a + ----- - -----------------|
\ 72 72 /
$$a \left(- \frac{c \left(64 a^{2} + 81 c^{2}\right)}{72} - 8 a + \frac{145 c}{72}\right)$$
/ / 2 2\\
|8*a a*\64*a + 81*c /| a*(-64*a + 9*c)
c*|--- - -----------------| + ---------------
\ 9 72 / 8
$$\frac{a \left(- 64 a + 9 c\right)}{8} + c \left(- \frac{a \left(64 a^{2} + 81 c^{2}\right)}{72} + \frac{8 a}{9}\right)$$
c*(8*a/9 - a*(64*a^2 + 81*c^2)/72) + a*(-64*a + 9*c)/8