Aromātai
6x-25
Whakaroha
6x-25
Graph
Tohaina
Kua tāruatia ki te papatopenga
\left(2x\right)^{2}-5^{2}-2x\left(2x-3\right)
Whakaarohia te \left(2x-5\right)\left(2x+5\right). Ka taea te whakareanga te panoni ki te rerekētanga o ngā pūrua mā te ture: \left(a-b\right)\left(a+b\right)=a^{2}-b^{2}.
2^{2}x^{2}-5^{2}-2x\left(2x-3\right)
Whakarohaina te \left(2x\right)^{2}.
4x^{2}-5^{2}-2x\left(2x-3\right)
Tātaihia te 2 mā te pū o 2, kia riro ko 4.
4x^{2}-25-2x\left(2x-3\right)
Tātaihia te 5 mā te pū o 2, kia riro ko 25.
4x^{2}-25-4x^{2}+6x
Whakamahia te āhuatanga tohatoha hei whakarea te -2x ki te 2x-3.
-25+6x
Pahekotia te 4x^{2} me -4x^{2}, ka 0.
\left(2x\right)^{2}-5^{2}-2x\left(2x-3\right)
Whakaarohia te \left(2x-5\right)\left(2x+5\right). Ka taea te whakareanga te panoni ki te rerekētanga o ngā pūrua mā te ture: \left(a-b\right)\left(a+b\right)=a^{2}-b^{2}.
2^{2}x^{2}-5^{2}-2x\left(2x-3\right)
Whakarohaina te \left(2x\right)^{2}.
4x^{2}-5^{2}-2x\left(2x-3\right)
Tātaihia te 2 mā te pū o 2, kia riro ko 4.
4x^{2}-25-2x\left(2x-3\right)
Tātaihia te 5 mā te pū o 2, kia riro ko 25.
4x^{2}-25-4x^{2}+6x
Whakamahia te āhuatanga tohatoha hei whakarea te -2x ki te 2x-3.
-25+6x
Pahekotia te 4x^{2} me -4x^{2}, ka 0.
Ngā Tauira
whārite tapawhā
{ x } ^ { 2 } - 4 x - 5 = 0
Āhuahanga
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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}