Nilaikan (complex solution)
x^{2}-5x+a-2=4\text{ and }x_{2}=-4
Selesaikan untuk x
x=\frac{\sqrt{49-4a}+5}{2}
x=\frac{-\sqrt{49-4a}+5}{2}\text{, }x_{2}=-4\text{ and }a\leq \frac{49}{4}
Selesaikan untuk x_2
x_{2}=-4
a=-\left(x-6\right)\left(x+1\right)
Kongsi
Disalin ke papan klip
Contoh
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{ x } ^ { 2 } - 4 x - 5 = 0
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Persamaan linear
y = 3x + 4
Aritmetik
699 * 533
Matriks
\left[ \begin{array} { l l } { 2 } & { 3 } \\ { 5 } & { 4 } \end{array} \right] \left[ \begin{array} { l l l } { 2 } & { 0 } & { 3 } \\ { -1 } & { 1 } & { 5 } \end{array} \right]
Persamaan serentak
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Pembezaan
\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
Pengamiran
\int _ { 0 } ^ { 1 } x e ^ { - x ^ { 2 } } d x
Had
\lim _{x \rightarrow-3} \frac{x^{2}-9}{x^{2}+2 x-3}