SOLUTION: a^4-81/3-a

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Question 724054: a^4-81/3-a
Answer by MathLover1(20850) About Me  (Show Source):
You can put this solution on YOUR website!
%28a%5E4-81%29%2F%283-a%29....write a%5E4 as %28a%5E2%29%5E2 and 81%29 as %283%5E2%29%5E2

%28%28a%5E2%29%5E2-%283%5E2%29%5E2%29%2F%283-a%29....use the "difference of squares" formula

%28%28a%5E2-3%5E2%29%28a%5E2%2B3%5E2%29%29%2F%283-a%29

%28%28a-3%29%28a%2B3%29%28a%5E2%2B9%29%29%2F%283-a%29

%28-%283-a%29%28a%2B3%29%28a%5E2%2B9%29%29%2F%283-a%29

%28-cross%28%283-a%29%29%28a%2B3%29%28a%5E2%2B9%29%29%2Fcross%28%283-a%29%29

-%28a%2B3%29%28a%5E2%2B9%29