Evaluate
-\frac{56}{23}\approx -2.434782609
Factor
-\frac{56}{23} = -2\frac{10}{23} = -2.4347826086956523
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\frac{-16\times 2-24}{22-\left(-3+2\right)}
Subtract 8 from 24 to get 16.
\frac{-32-24}{22-\left(-3+2\right)}
Multiply -16 and 2 to get -32.
\frac{-56}{22-\left(-3+2\right)}
Subtract 24 from -32 to get -56.
\frac{-56}{22-\left(-1\right)}
Add -3 and 2 to get -1.
\frac{-56}{22+1}
The opposite of -1 is 1.
\frac{-56}{23}
Add 22 and 1 to get 23.
-\frac{56}{23}
Fraction \frac{-56}{23} can be rewritten as -\frac{56}{23} by extracting the negative sign.
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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
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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}