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