Evaluate
\left(4i-j\right)\left(3j+2i\right)
Expand
-3j^{2}+10ij-8
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-8-2ij+12ij-3j^{2}
Apply the distributive property by multiplying each term of 2i+3j by each term of 4i-j.
-8+10ij-3j^{2}
Combine -2ij and 12ij to get 10ij.
-8-2ij+12ij-3j^{2}
Apply the distributive property by multiplying each term of 2i+3j by each term of 4i-j.
-8+10ij-3j^{2}
Combine -2ij and 12ij to get 10ij.
Examples
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{ x } ^ { 2 } - 4 x - 5 = 0
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Matrix
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Simultaneous equation
\left. \begin{cases} { 8x+2y = 46 } \\ { 7x+3y = 47 } \end{cases} \right.
Differentiation
\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
Integration
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Limits
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