Evaluate
\left(a-3\right)\left(a+4\right)
Expand
a^{2}+a-12
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-3a-12+a^{2}+4a
Apply the distributive property by multiplying each term of -3+a by each term of a+4.
a-12+a^{2}
Combine -3a and 4a to get a.
-3a-12+a^{2}+4a
Apply the distributive property by multiplying each term of -3+a by each term of a+4.
a-12+a^{2}
Combine -3a and 4a to get a.
Examples
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Matrix
\left[ \begin{array} { l l } { 2 } & { 3 } \\ { 5 } & { 4 } \end{array} \right] \left[ \begin{array} { l l l } { 2 } & { 0 } & { 3 } \\ { -1 } & { 1 } & { 5 } \end{array} \right]
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\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
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Limits
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