Evaluate
\frac{x+11}{\left(x-3\right)\left(x+4\right)}
Expand
\frac{x+11}{\left(x-3\right)\left(x+4\right)}
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\frac{x+11}{x^{2}+4x-3x-12}
Apply the distributive property by multiplying each term of x-3 by each term of x+4.
\frac{x+11}{x^{2}+x-12}
Combine 4x and -3x to get x.
\frac{x+11}{x^{2}+4x-3x-12}
Apply the distributive property by multiplying each term of x-3 by each term of x+4.
\frac{x+11}{x^{2}+x-12}
Combine 4x and -3x to get x.
Examples
Quadratic equation
{ x } ^ { 2 } - 4 x - 5 = 0
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y = 3x + 4
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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
\lim _{x \rightarrow-3} \frac{x^{2}-9}{x^{2}+2 x-3}