Expand
25x^{2}-55x+28
Evaluate
\left(4-5x\right)\left(7-5x\right)
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28-20x-35x+25x^{2}
Apply the distributive property by multiplying each term of 4-5x by each term of 7-5x.
28-55x+25x^{2}
Combine -20x and -35x to get -55x.
28-20x-35x+25x^{2}
Apply the distributive property by multiplying each term of 4-5x by each term of 7-5x.
28-55x+25x^{2}
Combine -20x and -35x to get -55x.
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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