Evaluate
6x\left(2x-5\right)
Expand
12x^{2}-30x
Graph
Share
Copied to clipboard
14x^{2}-35x-x\left(2x-5\right)
Use the distributive property to multiply 7x by 2x-5.
14x^{2}-35x-\left(2x^{2}-5x\right)
Use the distributive property to multiply x by 2x-5.
14x^{2}-35x-2x^{2}-\left(-5x\right)
To find the opposite of 2x^{2}-5x, find the opposite of each term.
14x^{2}-35x-2x^{2}+5x
The opposite of -5x is 5x.
12x^{2}-35x+5x
Combine 14x^{2} and -2x^{2} to get 12x^{2}.
12x^{2}-30x
Combine -35x and 5x to get -30x.
14x^{2}-35x-x\left(2x-5\right)
Use the distributive property to multiply 7x by 2x-5.
14x^{2}-35x-\left(2x^{2}-5x\right)
Use the distributive property to multiply x by 2x-5.
14x^{2}-35x-2x^{2}-\left(-5x\right)
To find the opposite of 2x^{2}-5x, find the opposite of each term.
14x^{2}-35x-2x^{2}+5x
The opposite of -5x is 5x.
12x^{2}-35x+5x
Combine 14x^{2} and -2x^{2} to get 12x^{2}.
12x^{2}-30x
Combine -35x and 5x to get -30x.
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}