2 m + ( 5 n - 14 m ) + 15 n - ( 6 m - 10 n
Evaluate
30n-18m
Expand
30n-18m
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-12m+5n+15n-\left(6m-10n\right)
Combine 2m and -14m to get -12m.
-12m+20n-\left(6m-10n\right)
Combine 5n and 15n to get 20n.
-12m+20n-6m-\left(-10n\right)
To find the opposite of 6m-10n, find the opposite of each term.
-12m+20n-6m+10n
The opposite of -10n is 10n.
-18m+20n+10n
Combine -12m and -6m to get -18m.
-18m+30n
Combine 20n and 10n to get 30n.
-12m+5n+15n-\left(6m-10n\right)
Combine 2m and -14m to get -12m.
-12m+20n-\left(6m-10n\right)
Combine 5n and 15n to get 20n.
-12m+20n-6m-\left(-10n\right)
To find the opposite of 6m-10n, find the opposite of each term.
-12m+20n-6m+10n
The opposite of -10n is 10n.
-18m+20n+10n
Combine -12m and -6m to get -18m.
-18m+30n
Combine 20n and 10n to get 30n.
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}