Evaluate
-5
Factor
-5
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\frac{256\times 16-21\times 21\times 21}{16^{2}+16\times 21+21^{2}}
Multiply 16 and 16 to get 256.
\frac{4096-21\times 21\times 21}{16^{2}+16\times 21+21^{2}}
Multiply 256 and 16 to get 4096.
\frac{4096-441\times 21}{16^{2}+16\times 21+21^{2}}
Multiply 21 and 21 to get 441.
\frac{4096-9261}{16^{2}+16\times 21+21^{2}}
Multiply 441 and 21 to get 9261.
\frac{-5165}{16^{2}+16\times 21+21^{2}}
Subtract 9261 from 4096 to get -5165.
\frac{-5165}{256+16\times 21+21^{2}}
Calculate 16 to the power of 2 and get 256.
\frac{-5165}{256+336+21^{2}}
Multiply 16 and 21 to get 336.
\frac{-5165}{592+21^{2}}
Add 256 and 336 to get 592.
\frac{-5165}{592+441}
Calculate 21 to the power of 2 and get 441.
\frac{-5165}{1033}
Add 592 and 441 to get 1033.
-5
Divide -5165 by 1033 to get -5.
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}