Evaluate
-8x-4
Expand
-8x-4
Graph
Share
Copied to clipboard
3\left(2x-3x-3\right)+8-4x-\left(x+3\right)
Use the distributive property to multiply -3 by x+1.
3\left(-x-3\right)+8-4x-\left(x+3\right)
Combine 2x and -3x to get -x.
-3x-9+8-4x-\left(x+3\right)
Use the distributive property to multiply 3 by -x-3.
-3x-1-4x-\left(x+3\right)
Add -9 and 8 to get -1.
-7x-1-\left(x+3\right)
Combine -3x and -4x to get -7x.
-7x-1-x-3
To find the opposite of x+3, find the opposite of each term.
-8x-1-3
Combine -7x and -x to get -8x.
-8x-4
Subtract 3 from -1 to get -4.
3\left(2x-3x-3\right)+8-4x-\left(x+3\right)
Use the distributive property to multiply -3 by x+1.
3\left(-x-3\right)+8-4x-\left(x+3\right)
Combine 2x and -3x to get -x.
-3x-9+8-4x-\left(x+3\right)
Use the distributive property to multiply 3 by -x-3.
-3x-1-4x-\left(x+3\right)
Add -9 and 8 to get -1.
-7x-1-\left(x+3\right)
Combine -3x and -4x to get -7x.
-7x-1-x-3
To find the opposite of x+3, find the opposite of each term.
-8x-1-3
Combine -7x and -x to get -8x.
-8x-4
Subtract 3 from -1 to get -4.
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}