Evaluate
7x\left(2-x\right)
Expand
14x-7x^{2}
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7x\left(-x\right)+14x
Use the distributive property to multiply 7x by -x+2.
-7xx+14x
Multiply 7 and -1 to get -7.
-7x^{2}+14x
Multiply x and x to get x^{2}.
7x\left(-x\right)+14x
Use the distributive property to multiply 7x by -x+2.
-7xx+14x
Multiply 7 and -1 to get -7.
-7x^{2}+14x
Multiply x and x to get x^{2}.
Examples
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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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