Подстановка условия
[src]144 - (x + 7)^2 - (5 - x)*(19 + x) при x = -3
144 - (x + 7)^2 - (5 - x)*(19 + x)
$$- \left(- x + 5\right) \left(x + 19\right) + - \left(x + 7\right)^{2} + 144$$
144 - ((-3) + 7)^2 - (5 - (-3))*(19 + (-3))
$$- \left(- (-3) + 5\right) \left((-3) + 19\right) + - \left((-3) + 7\right)^{2} + 144$$
144 - (-3 + 7)^2 - (5 - (-3))*(19 - 3)
$$- \left(-3 + 19\right) \left(- -3 + 5\right) + - \left(-3 + 7\right)^{2} + 144$$
2
144 - (7 + x) - (5 - x)*(19 + x)
$$- \left(- x + 5\right) \left(x + 19\right) - \left(x + 7\right)^{2} + 144$$
144.0 - (7.0 + x)^2 - (5.0 - x)*(19.0 + x)
Рациональный знаменатель
[src] 2
144 - (7 + x) - (5 - x)*(19 + x)
$$- \left(- x + 5\right) \left(x + 19\right) - \left(x + 7\right)^{2} + 144$$
Объединение рациональных выражений
[src] 2
144 - (7 + x) - (5 - x)*(19 + x)
$$- \left(- x + 5\right) \left(x + 19\right) - \left(x + 7\right)^{2} + 144$$
2
144 - (x + 7) - (5 - x)*(19 + x)
$$- \left(- x + 5\right) \left(x + 19\right) - \left(x + 7\right)^{2} + 144$$
2
144 - (7 + x) - (5 - x)*(19 + x)
$$- \left(- x + 5\right) \left(x + 19\right) - \left(x + 7\right)^{2} + 144$$