Evaluate
3\left(x-1\right)\left(4-x^{2}\right)
Expand
-3x^{3}+3x^{2}+12x-12
Graph
Share
Copied to clipboard
\left(3x-3\right)\left(-x^{2}+4\right)
Combine x and 2x to get 3x.
3x\left(-x^{2}\right)+12x-3\left(-x^{2}\right)-12
Use the distributive property to multiply 3x-3 by -x^{2}+4.
3x\left(-x^{2}\right)+12x+3x^{2}-12
Multiply -3 and -1 to get 3.
-3xx^{2}+12x+3x^{2}-12
Multiply 3 and -1 to get -3.
-3x^{3}+12x+3x^{2}-12
To multiply powers of the same base, add their exponents. Add 1 and 2 to get 3.
\left(3x-3\right)\left(-x^{2}+4\right)
Combine x and 2x to get 3x.
3x\left(-x^{2}\right)+12x-3\left(-x^{2}\right)-12
Use the distributive property to multiply 3x-3 by -x^{2}+4.
3x\left(-x^{2}\right)+12x+3x^{2}-12
Multiply -3 and -1 to get 3.
-3xx^{2}+12x+3x^{2}-12
Multiply 3 and -1 to get -3.
-3x^{3}+12x+3x^{2}-12
To multiply powers of the same base, add their exponents. Add 1 and 2 to get 3.
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}