Evaluate
65
Factor
5\times 13
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23+13+14+15
Add 11 and 12 to get 23.
36+14+15
Add 23 and 13 to get 36.
50+15
Add 36 and 14 to get 50.
65
Add 50 and 15 to get 65.
Examples
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{ x } ^ { 2 } - 4 x - 5 = 0
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4 \sin \theta \cos \theta = 2 \sin \theta
Linear equation
y = 3x + 4
Arithmetic
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Matrix
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Simultaneous equation
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Differentiation
\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
Integration
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Limits
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