Evaluate
v\left(5-v-2v^{2}\right)
Factor
-2v\left(v-\frac{-\sqrt{41}-1}{4}\right)\left(v-\frac{\sqrt{41}-1}{4}\right)
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-2v^{3}-3v^{2}+4v+2v^{2}+v
Combine 7v^{3} and -9v^{3} to get -2v^{3}.
-2v^{3}-v^{2}+4v+v
Combine -3v^{2} and 2v^{2} to get -v^{2}.
-2v^{3}-v^{2}+5v
Combine 4v and v to get 5v.
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}