Math
(k^3 -30k-18-4k^2) / (3+k)=
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Asked by
AnneS2
Last updated by
anonymous
(k^3 -30k-18-4k^2) / (3+k)=k^2-7k-9 R.9
(3+k)(k^2-7k-9)
(3)(k^2) (3)(-7k) (3)(-9) (k)(k^2) (k)(-7k) (k)(-9)
3k^2 -21k -27 k^3 -7k^2 -9k
k^3 -30k -27 -4k^2=-(k^3 -30k -27 -4k^2)
=-k^3+30k+27+4k^2
k^3 -30k-18-4k^2
-k^3+30k+27+4k^2
9