Aromātai
9y^{2}-7x^{2}
Whakaroha
9y^{2}-7x^{2}
Tohaina
Kua tāruatia ki te papatopenga
9xy-3x^{2}-\left(4x-3y\right)\left(x+3y\right)
Whakamahia te āhuatanga tohatoha hei whakarea te 3x ki te 3y-x.
9xy-3x^{2}-\left(4x^{2}+12xy-3yx-9y^{2}\right)
Me hoatu te āhuatanga tohatoha mā te whakarea ia tau o 4x-3y ki ia tau o x+3y.
9xy-3x^{2}-\left(4x^{2}+9xy-9y^{2}\right)
Pahekotia te 12xy me -3yx, ka 9xy.
9xy-3x^{2}-4x^{2}-9xy-\left(-9y^{2}\right)
Hei kimi i te tauaro o 4x^{2}+9xy-9y^{2}, kimihia te tauaro o ia taurangi.
9xy-3x^{2}-4x^{2}-9xy+9y^{2}
Ko te tauaro o -9y^{2} ko 9y^{2}.
9xy-7x^{2}-9xy+9y^{2}
Pahekotia te -3x^{2} me -4x^{2}, ka -7x^{2}.
-7x^{2}+9y^{2}
Pahekotia te 9xy me -9xy, ka 0.
9xy-3x^{2}-\left(4x-3y\right)\left(x+3y\right)
Whakamahia te āhuatanga tohatoha hei whakarea te 3x ki te 3y-x.
9xy-3x^{2}-\left(4x^{2}+12xy-3yx-9y^{2}\right)
Me hoatu te āhuatanga tohatoha mā te whakarea ia tau o 4x-3y ki ia tau o x+3y.
9xy-3x^{2}-\left(4x^{2}+9xy-9y^{2}\right)
Pahekotia te 12xy me -3yx, ka 9xy.
9xy-3x^{2}-4x^{2}-9xy-\left(-9y^{2}\right)
Hei kimi i te tauaro o 4x^{2}+9xy-9y^{2}, kimihia te tauaro o ia taurangi.
9xy-3x^{2}-4x^{2}-9xy+9y^{2}
Ko te tauaro o -9y^{2} ko 9y^{2}.
9xy-7x^{2}-9xy+9y^{2}
Pahekotia te -3x^{2} me -4x^{2}, ka -7x^{2}.
-7x^{2}+9y^{2}
Pahekotia te 9xy me -9xy, ka 0.
Ngā Tauira
whārite tapawhā
{ x } ^ { 2 } - 4 x - 5 = 0
Āhuahanga
4 \sin \theta \cos \theta = 2 \sin \theta
whārite paerangi
y = 3x + 4
Arithmetic
699 * 533
Poukapa
\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]
whārite Simultaneous
\left. \begin{cases} { 8x+2y = 46 } \\ { 7x+3y = 47 } \end{cases} \right.
Whakarerekētanga
\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
Whakaurunga
\int _ { 0 } ^ { 1 } x e ^ { - x ^ { 2 } } d x
Ngā Tepe
\lim _{x \rightarrow-3} \frac{x^{2}-9}{x^{2}+2 x-3}