Evaluate
628
Factor
157\times 2^{2}
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772.44+628\times 1.32-15.5\times 62.8
Multiply 123 and 6.28 to get 772.44.
772.44+828.96-15.5\times 62.8
Multiply 628 and 1.32 to get 828.96.
1601.4-15.5\times 62.8
Add 772.44 and 828.96 to get 1601.4.
1601.4-973.4
Multiply 15.5 and 62.8 to get 973.4.
628
Subtract 973.4 from 1601.4 to get 628.
Examples
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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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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}