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3x^{2}-2x+4a
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3x^{2}-2x+4a
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x^{2}-2\left(1-x\right)x+4a
Multiply -1 and 2 to get -2.
x^{2}+\left(-2+2x\right)x+4a
Use the distributive property to multiply -2 by 1-x.
x^{2}-2x+2x^{2}+4a
Use the distributive property to multiply -2+2x by x.
3x^{2}-2x+4a
Combine x^{2} and 2x^{2} to get 3x^{2}.
x^{2}-2\left(1-x\right)x+4a
Multiply -1 and 2 to get -2.
x^{2}+\left(-2+2x\right)x+4a
Use the distributive property to multiply -2 by 1-x.
x^{2}-2x+2x^{2}+4a
Use the distributive property to multiply -2+2x by x.
3x^{2}-2x+4a
Combine x^{2} and 2x^{2} to get 3x^{2}.
Examples
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{ x } ^ { 2 } - 4 x - 5 = 0
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y = 3x + 4
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Matrix
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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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