Enrhifo
2x^{2}-4x-3
Ehangu
2x^{2}-4x-3
Graff
Rhannu
Copïo i clipfwrdd
8x^{2}-14x-15-\left(6x^{2}-10x-12\right)
Defnyddio’r briodwedd ddosbarthu i luosi 4x+3 â 2x-5 a chyfuno termau tebyg.
8x^{2}-14x-15-6x^{2}+10x+12
I ddod o hyd i wrthwyneb 6x^{2}-10x-12, dewch o hyd i wrthwyneb pob term.
2x^{2}-14x-15+10x+12
Cyfuno 8x^{2} a -6x^{2} i gael 2x^{2}.
2x^{2}-4x-15+12
Cyfuno -14x a 10x i gael -4x.
2x^{2}-4x-3
Adio -15 a 12 i gael -3.
8x^{2}-14x-15-\left(6x^{2}-10x-12\right)
Defnyddio’r briodwedd ddosbarthu i luosi 4x+3 â 2x-5 a chyfuno termau tebyg.
8x^{2}-14x-15-6x^{2}+10x+12
I ddod o hyd i wrthwyneb 6x^{2}-10x-12, dewch o hyd i wrthwyneb pob term.
2x^{2}-14x-15+10x+12
Cyfuno 8x^{2} a -6x^{2} i gael 2x^{2}.
2x^{2}-4x-15+12
Cyfuno -14x a 10x i gael -4x.
2x^{2}-4x-3
Adio -15 a 12 i gael -3.
Enghreifftiau
Hafaliad cwadratig
{ x } ^ { 2 } - 4 x - 5 = 0
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4 \sin \theta \cos \theta = 2 \sin \theta
Hafaliad llinol
y = 3x + 4
Rhifyddeg
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Matrics
\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]
Hafaliad ar y pryd
\left. \begin{cases} { 8x+2y = 46 } \\ { 7x+3y = 47 } \end{cases} \right.
Gwahaniaethu
\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
Integreiddiad
\int _ { 0 } ^ { 1 } x e ^ { - x ^ { 2 } } d x
Terfynau
\lim _{x \rightarrow-3} \frac{x^{2}-9}{x^{2}+2 x-3}