Enrhifo
2\left(x+2\right)
Ehangu
2x+4
Graff
Rhannu
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\frac{\frac{3x\left(x+1\right)}{\left(x-1\right)\left(x+1\right)}-\frac{x\left(x-1\right)}{\left(x-1\right)\left(x+1\right)}}{\frac{x}{x^{2}-1}}
I ychwanegu neu dynnu mynegiannau, rhaid i chi eu ehangu i wneud eu enwaduron yr un fath. Lluosrif lleiaf cyffredin x-1 a x+1 yw \left(x-1\right)\left(x+1\right). Lluoswch \frac{3x}{x-1} â \frac{x+1}{x+1}. Lluoswch \frac{x}{x+1} â \frac{x-1}{x-1}.
\frac{\frac{3x\left(x+1\right)-x\left(x-1\right)}{\left(x-1\right)\left(x+1\right)}}{\frac{x}{x^{2}-1}}
Gan fod gan \frac{3x\left(x+1\right)}{\left(x-1\right)\left(x+1\right)} a \frac{x\left(x-1\right)}{\left(x-1\right)\left(x+1\right)} yr un dynodydd, tynnwch nhw drwy dynnu eu rhifiaduron.
\frac{\frac{3x^{2}+3x-x^{2}+x}{\left(x-1\right)\left(x+1\right)}}{\frac{x}{x^{2}-1}}
Gwnewch y gwaith lluosi yn 3x\left(x+1\right)-x\left(x-1\right).
\frac{\frac{2x^{2}+4x}{\left(x-1\right)\left(x+1\right)}}{\frac{x}{x^{2}-1}}
Cyfuno termau tebyg yn 3x^{2}+3x-x^{2}+x.
\frac{\left(2x^{2}+4x\right)\left(x^{2}-1\right)}{\left(x-1\right)\left(x+1\right)x}
Rhannwch \frac{2x^{2}+4x}{\left(x-1\right)\left(x+1\right)} â \frac{x}{x^{2}-1} drwy luosi \frac{2x^{2}+4x}{\left(x-1\right)\left(x+1\right)} â chilydd \frac{x}{x^{2}-1}.
\frac{2x\left(x-1\right)\left(x+1\right)\left(x+2\right)}{x\left(x-1\right)\left(x+1\right)}
Dylech ffactoreiddio'r mynegiadau sydd heb eu ffactoreiddio eto.
2\left(x+2\right)
Canslo x\left(x-1\right)\left(x+1\right) yn y rhifiadur a'r enwadur.
2x+4
Ehangwch y mynegiad.
\frac{\frac{3x\left(x+1\right)}{\left(x-1\right)\left(x+1\right)}-\frac{x\left(x-1\right)}{\left(x-1\right)\left(x+1\right)}}{\frac{x}{x^{2}-1}}
I ychwanegu neu dynnu mynegiannau, rhaid i chi eu ehangu i wneud eu enwaduron yr un fath. Lluosrif lleiaf cyffredin x-1 a x+1 yw \left(x-1\right)\left(x+1\right). Lluoswch \frac{3x}{x-1} â \frac{x+1}{x+1}. Lluoswch \frac{x}{x+1} â \frac{x-1}{x-1}.
\frac{\frac{3x\left(x+1\right)-x\left(x-1\right)}{\left(x-1\right)\left(x+1\right)}}{\frac{x}{x^{2}-1}}
Gan fod gan \frac{3x\left(x+1\right)}{\left(x-1\right)\left(x+1\right)} a \frac{x\left(x-1\right)}{\left(x-1\right)\left(x+1\right)} yr un dynodydd, tynnwch nhw drwy dynnu eu rhifiaduron.
\frac{\frac{3x^{2}+3x-x^{2}+x}{\left(x-1\right)\left(x+1\right)}}{\frac{x}{x^{2}-1}}
Gwnewch y gwaith lluosi yn 3x\left(x+1\right)-x\left(x-1\right).
\frac{\frac{2x^{2}+4x}{\left(x-1\right)\left(x+1\right)}}{\frac{x}{x^{2}-1}}
Cyfuno termau tebyg yn 3x^{2}+3x-x^{2}+x.
\frac{\left(2x^{2}+4x\right)\left(x^{2}-1\right)}{\left(x-1\right)\left(x+1\right)x}
Rhannwch \frac{2x^{2}+4x}{\left(x-1\right)\left(x+1\right)} â \frac{x}{x^{2}-1} drwy luosi \frac{2x^{2}+4x}{\left(x-1\right)\left(x+1\right)} â chilydd \frac{x}{x^{2}-1}.
\frac{2x\left(x-1\right)\left(x+1\right)\left(x+2\right)}{x\left(x-1\right)\left(x+1\right)}
Dylech ffactoreiddio'r mynegiadau sydd heb eu ffactoreiddio eto.
2\left(x+2\right)
Canslo x\left(x-1\right)\left(x+1\right) yn y rhifiadur a'r enwadur.
2x+4
Ehangwch y mynegiad.
Enghreifftiau
Hafaliad cwadratig
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y = 3x + 4
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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]
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\left. \begin{cases} { 8x+2y = 46 } \\ { 7x+3y = 47 } \end{cases} \right.
Gwahaniaethu
\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
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\int _ { 0 } ^ { 1 } x e ^ { - x ^ { 2 } } d x
Terfynau
\lim _{x \rightarrow-3} \frac{x^{2}-9}{x^{2}+2 x-3}