Asked by Stephen
Simplify
5^-1/2 * 5x^5/2 (5x)^-3/2
My final answer was x/sqrt5
5^-1/2 * 5x^5/2 (5x)^-3/2
My final answer was x/sqrt5
Answers
Answered by
Steve
you are correct.
Answered by
Damon
x^5/2 * x^-3/2 = x^1 = x
5^-1/2 * 5^1 * 5^-3/2 = 5^-1 =1/5
x/5
5^-1/2 * 5^1 * 5^-3/2 = 5^-1 =1/5
x/5
Answered by
Steve
I disagree, if you interpret the expression as
5^-1/2 * (5x)^5/2 * (5x)^-3/2
as he apparently did. I must say though, in Damon's defense, Stephen's wily (wildly?) and inconsistent use of parentheses left things open to misinterpretation.
Actually, even that is wrong, because you then have
5^-1/2 * 5x = x√5, not x/√5
So, my bad, too!
5^-1/2 * (5x)^5/2 * (5x)^-3/2
as he apparently did. I must say though, in Damon's defense, Stephen's wily (wildly?) and inconsistent use of parentheses left things open to misinterpretation.
Actually, even that is wrong, because you then have
5^-1/2 * 5x = x√5, not x/√5
So, my bad, too!
Answered by
Stephen
I'm just trying to write it like it appears in the book.
(5)^-1/2 * (5x)^5/2 (5x)^-3/2
Simplifies to
1/5 * ã5x^5(1/ã5x^3)
How do I get to xã5?
I'm confused. I've tried many times.
(5)^-1/2 * (5x)^5/2 (5x)^-3/2
Simplifies to
1/5 * ã5x^5(1/ã5x^3)
How do I get to xã5?
I'm confused. I've tried many times.
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