Evaluate
40000000
Factor
2^{9}\times 5^{7}
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\frac{20}{50\times \frac{1}{100000000}}
Calculate 10 to the power of -8 and get \frac{1}{100000000}.
\frac{20}{\frac{1}{2000000}}
Multiply 50 and \frac{1}{100000000} to get \frac{1}{2000000}.
20\times 2000000
Divide 20 by \frac{1}{2000000} by multiplying 20 by the reciprocal of \frac{1}{2000000}.
40000000
Multiply 20 and 2000000 to get 40000000.
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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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}