SOLUTION: My son has math home work where this is a question. 1. Simplify (5x) to power of -2 Can someone please help Thanks!

Question 900093: My son has math home work where this is a question.
1. Simplify (5x) to power of -2
Can someone please help
Thanks!
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Simplify (5x) to power of -2
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Comment:: The 2 means "square" or "multiply the number by itself".
The "negative sign" means "invert".
You may do these 2 steps in any order.
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(5x)^-2
If you square 1st you get (25x^2)
If you then invert you get 1/(25x^2)
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(5x)^-2
If you invert 1st you get (1/5x)
If you then square you get (1/25x^2)
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Ans: 1/(25x^2)
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Cheers,
Stan H.
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