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Pls help :) solve. b-^4 =1/81 b
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Pls help :) solve. b-^4 =1/81 b

User Kavin Varnan
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b^(-4) =(1)/(81)\\\\b^(-4) =(1)/(b^4)\\\\(1)/(b^4)=(1)/(81)\\\\b^4 = 81\\\\b^4 = 3^4\\\\b^4 = (-3)^4\\\\\boxed{\bf{b = 3}}\\\\\boxed{\bf{b=-3}}
User Bardelman
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