Evaluate
15
Factor
3\times 5
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\frac{25\times 9}{3\times 5}
Multiply \frac{25}{3} times \frac{9}{5} by multiplying numerator times numerator and denominator times denominator.
\frac{225}{15}
Do the multiplications in the fraction \frac{25\times 9}{3\times 5}.
15
Divide 225 by 15 to get 15.
Examples
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Matrix
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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
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Limits
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