Evaluate
ny+\frac{3n^{2}}{4}-20
Factor
\frac{4ny+3n^{2}-80}{4}
Graph
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12\times \frac{n^{2}}{16}+ny-20
Calculate 4 to the power of 2 and get 16.
\frac{12n^{2}}{16}+ny-20
Express 12\times \frac{n^{2}}{16} as a single fraction.
\frac{12n^{2}}{16}+\frac{16\left(ny-20\right)}{16}
To add or subtract expressions, expand them to make their denominators the same. Multiply ny-20 times \frac{16}{16}.
\frac{12n^{2}+16\left(ny-20\right)}{16}
Since \frac{12n^{2}}{16} and \frac{16\left(ny-20\right)}{16} have the same denominator, add them by adding their numerators.
\frac{12n^{2}+16ny-320}{16}
Do the multiplications in 12n^{2}+16\left(ny-20\right).
factor(12\times \frac{n^{2}}{16}+ny-20)
Calculate 4 to the power of 2 and get 16.
factor(\frac{12n^{2}}{16}+ny-20)
Express 12\times \frac{n^{2}}{16} as a single fraction.
factor(\frac{12n^{2}}{16}+\frac{16\left(ny-20\right)}{16})
To add or subtract expressions, expand them to make their denominators the same. Multiply ny-20 times \frac{16}{16}.
factor(\frac{12n^{2}+16\left(ny-20\right)}{16})
Since \frac{12n^{2}}{16} and \frac{16\left(ny-20\right)}{16} have the same denominator, add them by adding their numerators.
factor(\frac{12n^{2}+16ny-320}{16})
Do the multiplications in 12n^{2}+16\left(ny-20\right).
4\left(3n^{2}+4ny-80\right)
Consider 12n^{2}+16ny-320. Factor out 4.
\frac{3n^{2}+4ny-80}{4}
Rewrite the complete factored expression. Simplify.
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}