Evaluate
\left(n+1\right)\left(18n+1\right)
Expand
18n^{2}+19n+1
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18n^{2}+n+18n+1
Apply the distributive property by multiplying each term of n+1 by each term of 18n+1.
18n^{2}+19n+1
Combine n and 18n to get 19n.
18n^{2}+n+18n+1
Apply the distributive property by multiplying each term of n+1 by each term of 18n+1.
18n^{2}+19n+1
Combine n and 18n to get 19n.
Examples
Quadratic equation
{ x } ^ { 2 } - 4 x - 5 = 0
Trigonometry
4 \sin \theta \cos \theta = 2 \sin \theta
Linear equation
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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