( a + 2 a - 2 \cdot ( 5 a - 2 a ) ] + 2 \cdot ( z - 3 )
Evaluate
2z-3a-6
Expand
2z-3a-6
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3a-2\left(5a-2a\right)+2\left(z-3\right)
Combine a and 2a to get 3a.
3a-2\times 3a+2\left(z-3\right)
Combine 5a and -2a to get 3a.
3a-6a+2\left(z-3\right)
Multiply 2 and 3 to get 6.
-3a+2\left(z-3\right)
Combine 3a and -6a to get -3a.
-3a+2z-6
Use the distributive property to multiply 2 by z-3.
3a-2\left(5a-2a\right)+2\left(z-3\right)
Combine a and 2a to get 3a.
3a-2\times 3a+2\left(z-3\right)
Combine 5a and -2a to get 3a.
3a-6a+2\left(z-3\right)
Multiply 2 and 3 to get 6.
-3a+2\left(z-3\right)
Combine 3a and -6a to get -3a.
-3a+2z-6
Use the distributive property to multiply 2 by z-3.
Examples
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{ x } ^ { 2 } - 4 x - 5 = 0
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4 \sin \theta \cos \theta = 2 \sin \theta
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y = 3x + 4
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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}