Evaluate
\frac{9x}{4}+2
Factor
\frac{9x+8}{4}
Graph
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2x-4+1+\frac{1}{4}x+5
Combine x and x to get 2x.
2x-3+\frac{1}{4}x+5
Add -4 and 1 to get -3.
\frac{9}{4}x-3+5
Combine 2x and \frac{1}{4}x to get \frac{9}{4}x.
\frac{9}{4}x+2
Add -3 and 5 to get 2.
\frac{9x+8}{4}
Factor out \frac{1}{4}.
9x+8
Consider 4x-16+4x+4+x+20. Multiply and combine like terms.
\frac{9x+8}{4}
Rewrite the complete factored expression.
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
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}