Evaluate
617.5
Factor
\frac{5 \cdot 13 \cdot 19}{2} = 617\frac{1}{2} = 617.5
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252+128.5+74+83+80
Add 119 and 133 to get 252.
380.5+74+83+80
Add 252 and 128.5 to get 380.5.
454.5+83+80
Add 380.5 and 74 to get 454.5.
537.5+80
Add 454.5 and 83 to get 537.5.
617.5
Add 537.5 and 80 to get 617.5.
Examples
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{ x } ^ { 2 } - 4 x - 5 = 0
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y = 3x + 4
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Matrix
\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]
Simultaneous equation
\left. \begin{cases} { 8x+2y = 46 } \\ { 7x+3y = 47 } \end{cases} \right.
Differentiation
\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
Integration
\int _ { 0 } ^ { 1 } x e ^ { - x ^ { 2 } } d x
Limits
\lim _{x \rightarrow-3} \frac{x^{2}-9}{x^{2}+2 x-3}