5,2 \cdot ( 7,8 ) - ( - 1,5 ) \cdot ( - 3,4 ) =
Evaluate
35,46
Factor
\frac{197 \cdot 3 ^ {2}}{2 \cdot 5 ^ {2}} = 35\frac{23}{50} = 35.46
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40,56-\left(-1,5\left(-3,4\right)\right)
Multiply 5,2 and 7,8 to get 40,56.
40,56-5,1
Multiply -1,5 and -3,4 to get 5,1.
35,46
Subtract 5,1 from 40,56 to get 35,46.
Examples
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{ 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}