Объединение рациональных выражений
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2 2
(1 - a) *(15 - 8*a) - 7*(-1 + a) *(2 - a)
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2 2
(1 - a) *(-1 + a)
$$\frac{\left(- a + 1\right)^{2} \cdot \left(- 8 a + 15\right) - 7 \cdot \left(- a + 2\right) \left(a - 1\right)^{2}}{\left(- a + 1\right)^{2} \left(a - 1\right)^{2}}$$
((1 - a)^2*(15 - 8*a) - 7*(-1 + a)^2*(2 - a))/((1 - a)^2*(-1 + a)^2)
-14 + 7*a 15 - 8*a
--------- + ---------
2 2
(1 - a) (-1 + a)
$$\frac{- 8 a + 15}{\left(a - 1\right)^{2}} + \frac{7 a - 14}{\left(- a + 1\right)^{2}}$$
-14 + 7*a 15 - 8*a
--------- + --------
2 2
(1 - a) (a - 1)
$$\frac{- 8 a + 15}{\left(a - 1\right)^{2}} + \frac{7 a - 14}{\left(- a + 1\right)^{2}}$$
(-14 + 7*a)/(1 - a)^2 + (15 - 8*a)/(a - 1*1)^2
Рациональный знаменатель
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14 15 8*a 7*a
- -------- + --------- - --------- + --------
2 2 2 2
(1 - a) (-1 + a) (-1 + a) (1 - a)
$$- \frac{8 a}{\left(a - 1\right)^{2}} + \frac{7 a}{\left(- a + 1\right)^{2}} + \frac{15}{\left(a - 1\right)^{2}} - \frac{14}{\left(- a + 1\right)^{2}}$$
2 2
(1 - a) *(15 - 8*a) + (-1 + a) *(-14 + 7*a)
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2 2
(1 - a) *(-1 + a)
$$\frac{\left(- a + 1\right)^{2} \cdot \left(- 8 a + 15\right) + \left(a - 1\right)^{2} \cdot \left(7 a - 14\right)}{\left(- a + 1\right)^{2} \left(a - 1\right)^{2}}$$
((1 - a)^2*(15 - 8*a) + (-1 + a)^2*(-14 + 7*a))/((1 - a)^2*(-1 + a)^2)