Evaluate
-16
Factor
-16
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\left(\frac{1}{2}+\frac{3\times 2}{4}\right)\left(-8\right)
Express \frac{3}{4}\times 2 as a single fraction.
\left(\frac{1}{2}+\frac{6}{4}\right)\left(-8\right)
Multiply 3 and 2 to get 6.
\left(\frac{1}{2}+\frac{3}{2}\right)\left(-8\right)
Reduce the fraction \frac{6}{4} to lowest terms by extracting and canceling out 2.
\frac{1+3}{2}\left(-8\right)
Since \frac{1}{2} and \frac{3}{2} have the same denominator, add them by adding their numerators.
\frac{4}{2}\left(-8\right)
Add 1 and 3 to get 4.
2\left(-8\right)
Divide 4 by 2 to get 2.
-16
Multiply 2 and -8 to get -16.
Examples
Quadratic equation
{ x } ^ { 2 } - 4 x - 5 = 0
Trigonometry
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}