Evaluate
3\left(3m-4n\right)\left(5m+n\right)
Expand
45m^{2}-51mn-12n^{2}
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45m^{2}-60mn+9nm-12n^{2}
Apply the distributive property by multiplying each term of 15m+3n by each term of 3m-4n.
45m^{2}-51mn-12n^{2}
Combine -60mn and 9nm to get -51mn.
45m^{2}-60mn+9nm-12n^{2}
Apply the distributive property by multiplying each term of 15m+3n by each term of 3m-4n.
45m^{2}-51mn-12n^{2}
Combine -60mn and 9nm to get -51mn.
Examples
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\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
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Limits
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