SOLUTION: i have to solve for a. I can not get the answer to match the one in the book can you help me out. the problem is 125a^3 = 5a/x now 125a^3 = 5a/x^2

Question 861449: i have to solve for a. I can not get the answer to match the one in the book can you help me out. the problem is 125a^3 = 5a/x
now 125a^3 = 5a/x^2
Answer by richwmiller(17219) (Show Source): You can put this solution on YOUR website!
Let us in on the secret . What is the answer in the book?
You say "The answer in my book is A=1\5x"
That isn't possible because there is no A in the original problem.
What is "\"??

125a^3 = 5a/x
divide by 5a
25a^2=1/x
a^2=1/25x
a=+1/5sqrt(x)
a=-1/5sqrt(x)
Now the student says, "I made a mistake in the problem it is 125 a cubed equals 5 a over X squared and the answer in the book is a equals 1 over 5 x"
125a^3=5a/x^2
book answer :a=1/5x
125a^3 = 5a/x^2
divide by 5a
25a^2=1/x^2
a^2=1/25x^2
a=1/5x
a=-1/5x

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