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2b3 + 5 = 2 (3)³ + 5=
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1 vote
2b3 + 5 = 2 (3)³ + 5=

User Paiden
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1 Answer

1 vote

Answer:

b=3

Explanation:


2b^(3)+ 5=2(3)^(3)+5\\ 2b^(3)+5= 2(27)+5\\ 2b^(3)+5=54+5\\ 2b^(3)+5=59\\ 2b^(3)=59-5\\ 2b^(3)= 54\\ b^(3)= 54/2\\ b^(3)=27\\\sqrt[3]{b}=\sqrt[3]{27}\\ b=3

User Mani Jagadeesan
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