Evaluate
64x^{4}-64k^{4}+144k^{2}+144
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64x^{4}-64k^{4}+144k^{2}+144
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64x^{4}-4\left(4k^{2}+3\right)\left(4k^{2}-12\right)
Multiply -1 and 4 to get -4.
64x^{4}+\left(-16k^{2}-12\right)\left(4k^{2}-12\right)
Use the distributive property to multiply -4 by 4k^{2}+3.
64x^{4}-64k^{4}+144k^{2}+144
Use the distributive property to multiply -16k^{2}-12 by 4k^{2}-12 and combine like terms.
64x^{4}-4\left(4k^{2}+3\right)\left(4k^{2}-12\right)
Multiply -1 and 4 to get -4.
64x^{4}+\left(-16k^{2}-12\right)\left(4k^{2}-12\right)
Use the distributive property to multiply -4 by 4k^{2}+3.
64x^{4}-64k^{4}+144k^{2}+144
Use the distributive property to multiply -16k^{2}-12 by 4k^{2}-12 and combine like terms.
Examples
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\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 ) }
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Limits
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