15 + 2 \cdot ( 4,5 + 7,4 ) - 1
Evaluate
37,8
Factor
\frac{7 \cdot 3 ^ {3}}{5} = 37\frac{4}{5} = 37.8
Share
Copied to clipboard
15+2\times 11,9-1
Add 4,5 and 7,4 to get 11,9.
15+23,8-1
Multiply 2 and 11,9 to get 23,8.
38,8-1
Add 15 and 23,8 to get 38,8.
37,8
Subtract 1 from 38,8 to get 37,8.
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}