Enrhifo
-19
Ffactor
-19
Rhannu
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1-2\sqrt{2}+5\sqrt{2}-10\left(\sqrt{2}\right)^{2}-\sqrt{18}
Cyfrifwch y briodoledd ddosrannol drwy luosi pob 1+5\sqrt{2} gan bob 1-2\sqrt{2}.
1+3\sqrt{2}-10\left(\sqrt{2}\right)^{2}-\sqrt{18}
Cyfuno -2\sqrt{2} a 5\sqrt{2} i gael 3\sqrt{2}.
1+3\sqrt{2}-10\times 2-\sqrt{18}
Sgwâr \sqrt{2} yw 2.
1+3\sqrt{2}-20-\sqrt{18}
Lluosi -10 a 2 i gael -20.
-19+3\sqrt{2}-\sqrt{18}
Tynnu 20 o 1 i gael -19.
-19+3\sqrt{2}-3\sqrt{2}
Ffactora 18=3^{2}\times 2. Ailysgrifennu ail isradd y lluoswm \sqrt{3^{2}\times 2} fel lluoswm ail israddau \sqrt{3^{2}}\sqrt{2}. Cymryd isradd 3^{2}.
-19
Cyfuno 3\sqrt{2} a -3\sqrt{2} i gael 0.
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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]
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\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}