Evaluate
2+13n-3n^{2}
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2+13n-3n^{2}
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-5n^{2}+9n+3+2n^{2}+4n-1
To find the opposite of -2n^{2}-4n+1, find the opposite of each term.
-3n^{2}+9n+3+4n-1
Combine -5n^{2} and 2n^{2} to get -3n^{2}.
-3n^{2}+13n+3-1
Combine 9n and 4n to get 13n.
-3n^{2}+13n+2
Subtract 1 from 3 to get 2.
-5n^{2}+9n+3+2n^{2}+4n-1
To find the opposite of -2n^{2}-4n+1, find the opposite of each term.
-3n^{2}+9n+3+4n-1
Combine -5n^{2} and 2n^{2} to get -3n^{2}.
-3n^{2}+13n+3-1
Combine 9n and 4n to get 13n.
-3n^{2}+13n+2
Subtract 1 from 3 to get 2.
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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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