Enrhifo
-\frac{5x+2}{2\left(x+1\right)}
Ehangu
-\frac{5x+2}{2\left(x+1\right)}
Graff
Rhannu
Copïo i clipfwrdd
\frac{x-1}{x+1}-\frac{7x}{2\left(x+1\right)}
Ffactora 2x+2.
\frac{2\left(x-1\right)}{2\left(x+1\right)}-\frac{7x}{2\left(x+1\right)}
I ychwanegu neu dynnu mynegiannau, rhaid i chi eu ehangu i wneud eu enwaduron yr un fath. Lluosrif lleiaf cyffredin x+1 a 2\left(x+1\right) yw 2\left(x+1\right). Lluoswch \frac{x-1}{x+1} â \frac{2}{2}.
\frac{2\left(x-1\right)-7x}{2\left(x+1\right)}
Gan fod gan \frac{2\left(x-1\right)}{2\left(x+1\right)} a \frac{7x}{2\left(x+1\right)} yr un dynodydd, tynnwch nhw drwy dynnu eu rhifiaduron.
\frac{2x-2-7x}{2\left(x+1\right)}
Gwnewch y gwaith lluosi yn 2\left(x-1\right)-7x.
\frac{-5x-2}{2\left(x+1\right)}
Cyfuno termau tebyg yn 2x-2-7x.
\frac{-5x-2}{2x+2}
Ehangu 2\left(x+1\right).
\frac{x-1}{x+1}-\frac{7x}{2\left(x+1\right)}
Ffactora 2x+2.
\frac{2\left(x-1\right)}{2\left(x+1\right)}-\frac{7x}{2\left(x+1\right)}
I ychwanegu neu dynnu mynegiannau, rhaid i chi eu ehangu i wneud eu enwaduron yr un fath. Lluosrif lleiaf cyffredin x+1 a 2\left(x+1\right) yw 2\left(x+1\right). Lluoswch \frac{x-1}{x+1} â \frac{2}{2}.
\frac{2\left(x-1\right)-7x}{2\left(x+1\right)}
Gan fod gan \frac{2\left(x-1\right)}{2\left(x+1\right)} a \frac{7x}{2\left(x+1\right)} yr un dynodydd, tynnwch nhw drwy dynnu eu rhifiaduron.
\frac{2x-2-7x}{2\left(x+1\right)}
Gwnewch y gwaith lluosi yn 2\left(x-1\right)-7x.
\frac{-5x-2}{2\left(x+1\right)}
Cyfuno termau tebyg yn 2x-2-7x.
\frac{-5x-2}{2x+2}
Ehangu 2\left(x+1\right).
Enghreifftiau
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4 \sin \theta \cos \theta = 2 \sin \theta
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y = 3x + 4
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699 * 533
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\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}