Evaluate
73.5
Factor
\frac{3 \cdot 7 ^ {2}}{2} = 73\frac{1}{2} = 73.5
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15+2+5+20+2.5\times 5+5+1.5\times 5+2.5+4
Multiply 3 and 5 to get 15. Multiply 2 and 1 to get 2.
17+5+20+2.5\times 5+5+1.5\times 5+2.5+4
Add 15 and 2 to get 17.
22+20+2.5\times 5+5+1.5\times 5+2.5+4
Add 17 and 5 to get 22.
42+2.5\times 5+5+1.5\times 5+2.5+4
Add 22 and 20 to get 42.
42+12.5+5+1.5\times 5+2.5+4
Multiply 2.5 and 5 to get 12.5.
54.5+5+1.5\times 5+2.5+4
Add 42 and 12.5 to get 54.5.
59.5+1.5\times 5+2.5+4
Add 54.5 and 5 to get 59.5.
59.5+7.5+2.5+4
Multiply 1.5 and 5 to get 7.5.
67+2.5+4
Add 59.5 and 7.5 to get 67.
69.5+4
Add 67 and 2.5 to get 69.5.
73.5
Add 69.5 and 4 to get 73.5.
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}