Ffactor
\left(ab-15\right)\left(ab+15\right)
Enrhifo
\left(ab\right)^{2}-225
Rhannu
Copïo i clipfwrdd
\left(ab-15\right)\left(ab+15\right)
Ailysgrifennwch a^{2}b^{2}-225 fel \left(ab\right)^{2}-15^{2}. Gellir ffactorio’r gwahaniaeth rhwng sgwariau gan ddefnyddio’r rheol: p^{2}-q^{2}=\left(p-q\right)\left(p+q\right).
Enghreifftiau
Hafaliad cwadratig
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Trigonometreg
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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]
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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}