Evaluate
12
Factor
2^{2}\times 3
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3+15-6\times 3+\frac{144}{12}
Divide 21 by 7 to get 3.
18-6\times 3+\frac{144}{12}
Add 3 and 15 to get 18.
18-18+\frac{144}{12}
Multiply 6 and 3 to get 18.
0+\frac{144}{12}
Subtract 18 from 18 to get 0.
0+12
Divide 144 by 12 to get 12.
12
Add 0 and 12 to get 12.
Examples
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Simultaneous equation
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\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
Integration
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Limits
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