Evaluate
x\left(x-3\right)
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x^{2}-3x
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5x^{2}-x-x\left(2+4x\right)
Use the distributive property to multiply x by 5x-1.
5x^{2}-x-\left(2x+4x^{2}\right)
Use the distributive property to multiply x by 2+4x.
5x^{2}-x-2x-4x^{2}
To find the opposite of 2x+4x^{2}, find the opposite of each term.
5x^{2}-3x-4x^{2}
Combine -x and -2x to get -3x.
x^{2}-3x
Combine 5x^{2} and -4x^{2} to get x^{2}.
5x^{2}-x-x\left(2+4x\right)
Use the distributive property to multiply x by 5x-1.
5x^{2}-x-\left(2x+4x^{2}\right)
Use the distributive property to multiply x by 2+4x.
5x^{2}-x-2x-4x^{2}
To find the opposite of 2x+4x^{2}, find the opposite of each term.
5x^{2}-3x-4x^{2}
Combine -x and -2x to get -3x.
x^{2}-3x
Combine 5x^{2} and -4x^{2} to get x^{2}.
Examples
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y = 3x + 4
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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
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