Question

8m3+27n3-27n3+18mnp =???​

Answer 1

Answer:

p(n)=27n^3-an^2-n+3

p(-1/3)=27(-1/3)^3-a(-1/3)^2-(-1/3)+3

p(-1/3)=27(-1/27)+a(1/9)+1/3+3

=-1+a/9+1/3+3

=-9+a+3+27/9

=21+a/9=0

a+21=0

Step-by-step explanation:

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