Enrhifo
\left(x+6\right)^{2}-y^{2}
Ehangu
x^{2}+12x-y^{2}+36
Rhannu
Copïo i clipfwrdd
x^{2}+6x-xy+6x+36-6y+yx+6y-y^{2}
Cyfrifwch y briodoledd ddosrannol drwy luosi pob x+6+y gan bob x+6-y.
x^{2}+12x-xy+36-6y+yx+6y-y^{2}
Cyfuno 6x a 6x i gael 12x.
x^{2}+12x+36-6y+6y-y^{2}
Cyfuno -xy a yx i gael 0.
x^{2}+12x+36-y^{2}
Cyfuno -6y a 6y i gael 0.
x^{2}+6x-xy+6x+36-6y+yx+6y-y^{2}
Cyfrifwch y briodoledd ddosrannol drwy luosi pob x+6+y gan bob x+6-y.
x^{2}+12x-xy+36-6y+yx+6y-y^{2}
Cyfuno 6x a 6x i gael 12x.
x^{2}+12x+36-6y+6y-y^{2}
Cyfuno -xy a yx i gael 0.
x^{2}+12x+36-y^{2}
Cyfuno -6y a 6y i gael 0.
Enghreifftiau
Hafaliad cwadratig
{ x } ^ { 2 } - 4 x - 5 = 0
Trigonometreg
4 \sin \theta \cos \theta = 2 \sin \theta
Hafaliad llinol
y = 3x + 4
Rhifyddeg
699 * 533
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}