Evaluate
-5\left(x-21\right)\left(x+7\right)
Expand
735+70x-5x^{2}
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\left(-5x-35\right)\left(x-3\times 7\right)
Multiply 1 and 35 to get 35.
\left(-5x-35\right)\left(x-21\right)
Multiply 3 and 7 to get 21.
-5x^{2}+105x-35x+735
Apply the distributive property by multiplying each term of -5x-35 by each term of x-21.
-5x^{2}+70x+735
Combine 105x and -35x to get 70x.
\left(-5x-35\right)\left(x-3\times 7\right)
Multiply 1 and 35 to get 35.
\left(-5x-35\right)\left(x-21\right)
Multiply 3 and 7 to get 21.
-5x^{2}+105x-35x+735
Apply the distributive property by multiplying each term of -5x-35 by each term of x-21.
-5x^{2}+70x+735
Combine 105x and -35x to get 70x.
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\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
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Limits
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