Evaluate
\frac{40}{7x^{2}}
Differentiate w.r.t. x
-\frac{80}{7x^{3}}
Graph
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\frac{8x\times 10}{7\times 2x^{3}}
Multiply \frac{8x}{7} times \frac{10}{2x^{3}} by multiplying numerator times numerator and denominator times denominator.
\frac{4\times 10}{7x^{2}}
Cancel out 2x in both numerator and denominator.
\frac{40}{7x^{2}}
Multiply 4 and 10 to get 40.
Examples
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Linear equation
y = 3x + 4
Arithmetic
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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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