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40x^{2}+7x-20
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40x^{2}+7x-20
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40x^{2}-25x+32x-20
Apply the distributive property by multiplying each term of -5x-4 by each term of -8x+5.
40x^{2}+7x-20
Combine -25x and 32x to get 7x.
40x^{2}-25x+32x-20
Apply the distributive property by multiplying each term of -5x-4 by each term of -8x+5.
40x^{2}+7x-20
Combine -25x and 32x to get 7x.
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.
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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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