Evaluate
5x\left(8-x\right)
Expand
40x-5x^{2}
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5x\left(-x\right)+40x
Use the distributive property to multiply 5x by -x+8.
-5xx+40x
Multiply 5 and -1 to get -5.
-5x^{2}+40x
Multiply x and x to get x^{2}.
5x\left(-x\right)+40x
Use the distributive property to multiply 5x by -x+8.
-5xx+40x
Multiply 5 and -1 to get -5.
-5x^{2}+40x
Multiply x and x to get x^{2}.
Examples
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\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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