Evaluate
50\left(100-x\right)\left(x+40\right)
Expand
200000+3000x-50x^{2}
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200000-2000x+5000x-50x^{2}
Apply the distributive property by multiplying each term of 200+5x by each term of 1000-10x.
200000+3000x-50x^{2}
Combine -2000x and 5000x to get 3000x.
200000-2000x+5000x-50x^{2}
Apply the distributive property by multiplying each term of 200+5x by each term of 1000-10x.
200000+3000x-50x^{2}
Combine -2000x and 5000x to get 3000x.
Examples
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{ x } ^ { 2 } - 4 x - 5 = 0
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Matrix
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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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