Ffactor
3x\left(x-3y\right)\left(x+3y\right)
Enrhifo
3x\left(x^{2}-9y^{2}\right)
Rhannu
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3\left(x^{3}-9xy^{2}\right)
Ffactora allan 3.
x\left(x^{2}-9y^{2}\right)
Ystyriwch x^{3}-9xy^{2}. Ffactora allan x.
\left(x-3y\right)\left(x+3y\right)
Ystyriwch x^{2}-9y^{2}. Ailysgrifennwch x^{2}-9y^{2} fel x^{2}-\left(3y\right)^{2}. Gellir ffactorio’r gwahaniaeth rhwng sgwariau gan ddefnyddio’r rheol: a^{2}-b^{2}=\left(a-b\right)\left(a+b\right).
3x\left(x-3y\right)\left(x+3y\right)
Ailysgrifennwch y mynegiad cyfan wedi'i ffactorio.
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Integreiddiad
\int _ { 0 } ^ { 1 } x e ^ { - x ^ { 2 } } d x
Terfynau
\lim _{x \rightarrow-3} \frac{x^{2}-9}{x^{2}+2 x-3}