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5y^{2}+4y+48
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5y^{2}+4y+48
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9y^{2}-4\left(y+3\right)\left(y-4\right)
Multiply -1 and 4 to get -4.
9y^{2}+\left(-4y-12\right)\left(y-4\right)
Use the distributive property to multiply -4 by y+3.
9y^{2}-4y^{2}+4y+48
Use the distributive property to multiply -4y-12 by y-4 and combine like terms.
5y^{2}+4y+48
Combine 9y^{2} and -4y^{2} to get 5y^{2}.
9y^{2}-4\left(y+3\right)\left(y-4\right)
Multiply -1 and 4 to get -4.
9y^{2}+\left(-4y-12\right)\left(y-4\right)
Use the distributive property to multiply -4 by y+3.
9y^{2}-4y^{2}+4y+48
Use the distributive property to multiply -4y-12 by y-4 and combine like terms.
5y^{2}+4y+48
Combine 9y^{2} and -4y^{2} to get 5y^{2}.
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\frac { d } { d x } \frac { ( 3 x ^ { 2 } - 2 ) } { ( x - 5 ) }
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Limits
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