Evalwa
15-18x-x^{2}
Espandi
15-18x-x^{2}
Graff
Sehem
Ikkupjat fuq il-klibbord
2\left(x^{2}-6x+9\right)-3\left(x+1\right)^{2}
Uża teorema binomjali \left(a-b\right)^{2}=a^{2}-2ab+b^{2} biex tespandi \left(x-3\right)^{2}.
2x^{2}-12x+18-3\left(x+1\right)^{2}
Uża l-propjetà distributtiva biex timmultiplika 2 b'x^{2}-6x+9.
2x^{2}-12x+18-3\left(x^{2}+2x+1\right)
Uża teorema binomjali \left(a+b\right)^{2}=a^{2}+2ab+b^{2} biex tespandi \left(x+1\right)^{2}.
2x^{2}-12x+18-3x^{2}-6x-3
Uża l-propjetà distributtiva biex timmultiplika -3 b'x^{2}+2x+1.
-x^{2}-12x+18-6x-3
Ikkombina 2x^{2} u -3x^{2} biex tikseb -x^{2}.
-x^{2}-18x+18-3
Ikkombina -12x u -6x biex tikseb -18x.
-x^{2}-18x+15
Naqqas 3 minn 18 biex tikseb 15.
2\left(x^{2}-6x+9\right)-3\left(x+1\right)^{2}
Uża teorema binomjali \left(a-b\right)^{2}=a^{2}-2ab+b^{2} biex tespandi \left(x-3\right)^{2}.
2x^{2}-12x+18-3\left(x+1\right)^{2}
Uża l-propjetà distributtiva biex timmultiplika 2 b'x^{2}-6x+9.
2x^{2}-12x+18-3\left(x^{2}+2x+1\right)
Uża teorema binomjali \left(a+b\right)^{2}=a^{2}+2ab+b^{2} biex tespandi \left(x+1\right)^{2}.
2x^{2}-12x+18-3x^{2}-6x-3
Uża l-propjetà distributtiva biex timmultiplika -3 b'x^{2}+2x+1.
-x^{2}-12x+18-6x-3
Ikkombina 2x^{2} u -3x^{2} biex tikseb -x^{2}.
-x^{2}-18x+18-3
Ikkombina -12x u -6x biex tikseb -18x.
-x^{2}-18x+15
Naqqas 3 minn 18 biex tikseb 15.
Eżempji
Ekwazzjoni kwadratika
{ x } ^ { 2 } - 4 x - 5 = 0
Trigonometrija
4 \sin \theta \cos \theta = 2 \sin \theta
Ekwazzjoni lineari
y = 3x + 4
Aritmetika
699 * 533
Matriċi
\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]
Ekwazzjoni simultanja
\left. \begin{cases} { 8x+2y = 46 } \\ { 7x+3y = 47 } \end{cases} \right.
Differenzazzjoni
\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
Integrazzjoni
\int _ { 0 } ^ { 1 } x e ^ { - x ^ { 2 } } d x
Limiti
\lim _{x \rightarrow-3} \frac{x^{2}-9}{x^{2}+2 x-3}