Aromātai
\left(a+2b\right)\left(2+7b-3a\right)
Whakaroha
4b+14b^{2}+2a+ab-3a^{2}
Tohaina
Kua tāruatia ki te papatopenga
2a+4b-\left(a+2b\right)\left(3a-7b\right)
Whakamahia te āhuatanga tohatoha hei whakarea te a+2b ki te 2.
2a+4b-\left(3a^{2}-7ab+6ba-14b^{2}\right)
Me hoatu te āhuatanga tohatoha mā te whakarea ia tau o a+2b ki ia tau o 3a-7b.
2a+4b-\left(3a^{2}-ab-14b^{2}\right)
Pahekotia te -7ab me 6ba, ka -ab.
2a+4b-3a^{2}-\left(-ab\right)-\left(-14b^{2}\right)
Hei kimi i te tauaro o 3a^{2}-ab-14b^{2}, kimihia te tauaro o ia taurangi.
2a+4b-3a^{2}+ab-\left(-14b^{2}\right)
Ko te tauaro o -ab ko ab.
2a+4b-3a^{2}+ab+14b^{2}
Ko te tauaro o -14b^{2} ko 14b^{2}.
2a+4b-\left(a+2b\right)\left(3a-7b\right)
Whakamahia te āhuatanga tohatoha hei whakarea te a+2b ki te 2.
2a+4b-\left(3a^{2}-7ab+6ba-14b^{2}\right)
Me hoatu te āhuatanga tohatoha mā te whakarea ia tau o a+2b ki ia tau o 3a-7b.
2a+4b-\left(3a^{2}-ab-14b^{2}\right)
Pahekotia te -7ab me 6ba, ka -ab.
2a+4b-3a^{2}-\left(-ab\right)-\left(-14b^{2}\right)
Hei kimi i te tauaro o 3a^{2}-ab-14b^{2}, kimihia te tauaro o ia taurangi.
2a+4b-3a^{2}+ab-\left(-14b^{2}\right)
Ko te tauaro o -ab ko ab.
2a+4b-3a^{2}+ab+14b^{2}
Ko te tauaro o -14b^{2} ko 14b^{2}.
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}