.5(78)+.5(84
Evaluate
81
Factor
3^{4}
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39+0.5\times 84
Multiply 0.5 and 78 to get 39.
39+42
Multiply 0.5 and 84 to get 42.
81
Add 39 and 42 to get 81.
Examples
Quadratic equation
{ x } ^ { 2 } - 4 x - 5 = 0
Trigonometry
4 \sin \theta \cos \theta = 2 \sin \theta
Linear equation
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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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