Evaluate
\frac{2}{9}+\frac{1}{3x^{2}}
Factor
\frac{2x^{2}+3}{9x^{2}}
Graph
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\frac{\frac{\left(\sqrt{6}\right)^{2}}{3^{2}}}{\left(\sqrt{3}\right)^{2}}+\frac{\left(\frac{\sqrt{3}}{3}\right)^{2}}{x^{2}}
To raise \frac{\sqrt{6}}{3} to a power, raise both numerator and denominator to the power and then divide.
\frac{\frac{\left(\sqrt{6}\right)^{2}}{3^{2}}}{3}+\frac{\left(\frac{\sqrt{3}}{3}\right)^{2}}{x^{2}}
The square of \sqrt{3} is 3.
\frac{\left(\sqrt{6}\right)^{2}}{3^{2}\times 3}+\frac{\left(\frac{\sqrt{3}}{3}\right)^{2}}{x^{2}}
Express \frac{\frac{\left(\sqrt{6}\right)^{2}}{3^{2}}}{3} as a single fraction.
\frac{6}{3^{2}\times 3}+\frac{\left(\frac{\sqrt{3}}{3}\right)^{2}}{x^{2}}
The square of \sqrt{6} is 6.
\frac{6}{3^{3}}+\frac{\left(\frac{\sqrt{3}}{3}\right)^{2}}{x^{2}}
To multiply powers of the same base, add their exponents. Add 2 and 1 to get 3.
\frac{6}{27}+\frac{\left(\frac{\sqrt{3}}{3}\right)^{2}}{x^{2}}
Calculate 3 to the power of 3 and get 27.
\frac{2}{9}+\frac{\left(\frac{\sqrt{3}}{3}\right)^{2}}{x^{2}}
Reduce the fraction \frac{6}{27} to lowest terms by extracting and canceling out 3.
\frac{2}{9}+\frac{\frac{\left(\sqrt{3}\right)^{2}}{3^{2}}}{x^{2}}
To raise \frac{\sqrt{3}}{3} to a power, raise both numerator and denominator to the power and then divide.
\frac{2}{9}+\frac{\left(\sqrt{3}\right)^{2}}{3^{2}x^{2}}
Express \frac{\frac{\left(\sqrt{3}\right)^{2}}{3^{2}}}{x^{2}} as a single fraction.
\frac{2}{9}+\frac{3}{3^{2}x^{2}}
The square of \sqrt{3} is 3.
\frac{2}{9}+\frac{3}{9x^{2}}
Calculate 3 to the power of 2 and get 9.
\frac{2x^{2}}{9x^{2}}+\frac{3}{9x^{2}}
To add or subtract expressions, expand them to make their denominators the same. Least common multiple of 9 and 9x^{2} is 9x^{2}. Multiply \frac{2}{9} times \frac{x^{2}}{x^{2}}.
\frac{2x^{2}+3}{9x^{2}}
Since \frac{2x^{2}}{9x^{2}} and \frac{3}{9x^{2}} have the same denominator, add them by adding their numerators.
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}