Enrhifo
-2\sqrt{3}\approx -3.464101615
Rhannu
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\sqrt{3}-\sqrt{27}
Ailysgrifennu rhaniad ail israddau \frac{\sqrt{18}}{\sqrt{6}} fel ail isradd y rhaniad \sqrt{\frac{18}{6}} a gwneud y swm rhannu.
\sqrt{3}-3\sqrt{3}
Ffactora 27=3^{2}\times 3. Ailysgrifennu ail isradd y lluoswm \sqrt{3^{2}\times 3} fel lluoswm ail israddau \sqrt{3^{2}}\sqrt{3}. Cymryd isradd 3^{2}.
-2\sqrt{3}
Cyfuno \sqrt{3} a -3\sqrt{3} i gael -2\sqrt{3}.
Enghreifftiau
Hafaliad cwadratig
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y = 3x + 4
Rhifyddeg
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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}