URGENT!!!!!!!! how to find the limit of x---4 x 3 -6 4 /x 2 -16
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lim (x³-4³)/(x²-4²)
x→4
=lim [(x³-4³)/(x-4)]/[(x²-4²)/(x-4)] since lim [x^n-a^n]/[x^m-a^m]=n/m*(a^n-m)
x→4
=3/2 *4^3-2
=(3/2)*4
=6
x→4
=lim [(x³-4³)/(x-4)]/[(x²-4²)/(x-4)] since lim [x^n-a^n]/[x^m-a^m]=n/m*(a^n-m)
x→4
=3/2 *4^3-2
=(3/2)*4
=6
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