Answer:
its scientific notification is 5×10^9
Hey there!
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ANSWER: 
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EXPLANATION:</h2>

Simplify both sides and you get:

Now add 5 to both sides and you get:

Now you have to multiply both sides and you get:

Hope this helps!

X³ = 125/27
Cube root both sides to isolate the variable:
∛x³ = ∛(125/27)
x = ∛(125/27)
∛125 = 5, ∛27 = 3
x = 5/3