Evaluate
2\left(x^{3}-2x^{2}+4x-1\right)
Expand
2x^{3}-4x^{2}+8x-2
Graph
Quiz
Polynomial
5 problems similar to:
( 2 x ^ { 3 } - 3 x ^ { 2 } + 5 x - 1 ) - ( x ^ { 2 } + 1 - 3 x ) =
Share
Copied to clipboard
2x^{3}-3x^{2}+5x-1-x^{2}-1+3x
To find the opposite of x^{2}+1-3x, find the opposite of each term.
2x^{3}-4x^{2}+5x-1-1+3x
Combine -3x^{2} and -x^{2} to get -4x^{2}.
2x^{3}-4x^{2}+5x-2+3x
Subtract 1 from -1 to get -2.
2x^{3}-4x^{2}+8x-2
Combine 5x and 3x to get 8x.
2x^{3}-3x^{2}+5x-1-x^{2}-1+3x
To find the opposite of x^{2}+1-3x, find the opposite of each term.
2x^{3}-4x^{2}+5x-1-1+3x
Combine -3x^{2} and -x^{2} to get -4x^{2}.
2x^{3}-4x^{2}+5x-2+3x
Subtract 1 from -1 to get -2.
2x^{3}-4x^{2}+8x-2
Combine 5x and 3x to get 8x.
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}