SOLUTION: Factor completely:
81a^4-81b^4
Algebra.Com
Question 425652: Factor completely:
81a^4-81b^4
Found 2 solutions by dnanos, lwsshak3:
Answer by dnanos(83) (Show Source): You can put this solution on YOUR website!
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Answer by lwsshak3(11628) (Show Source): You can put this solution on YOUR website!
Factor completely:
81a^4-81b^4
difference of two squares:
=(9+a^2+9b^2)(9+a^2-9b^2)
=(9+a^2+9b^2)(3a+3b)(3a-3b)
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