Evaluate
400
Factor
2^{4}\times 5^{2}
Quiz
Arithmetic
5 problems similar to:
\frac { ( 6.4 \times 10 ^ { 7 } ) } { ( 1.6 \times 10 ^ { 5 } ) }
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\frac{6.4\times 10^{2}}{1.6}
Cancel out 10^{5} in both numerator and denominator.
\frac{6.4\times 100}{1.6}
Calculate 10 to the power of 2 and get 100.
\frac{640}{1.6}
Multiply 6.4 and 100 to get 640.
\frac{6400}{16}
Expand \frac{640}{1.6} by multiplying both numerator and the denominator by 10.
400
Divide 6400 by 16 to get 400.
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}