Evaluate
-\frac{127}{3}\approx -42.333333333
Factor
-\frac{127}{3} = -42\frac{1}{3} = -42.333333333333336
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\frac{2\times 64-1}{-2-1}
Calculate -2 to the power of 6 and get 64.
\frac{128-1}{-2-1}
Multiply 2 and 64 to get 128.
\frac{127}{-2-1}
Subtract 1 from 128 to get 127.
\frac{127}{-3}
Subtract 1 from -2 to get -3.
-\frac{127}{3}
Fraction \frac{127}{-3} can be rewritten as -\frac{127}{3} by extracting the negative sign.
Examples
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{ x } ^ { 2 } - 4 x - 5 = 0
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4 \sin \theta \cos \theta = 2 \sin \theta
Linear equation
y = 3x + 4
Arithmetic
699 * 533
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}