Question 85964
write using positive exponents, and simplify if possible.

(-3x)^-2
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The negative exponent means "invert"
The 2 mean "square"
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You get:
If you square first: (9x^2)^-1
If you then invert:  1/(9x^2)
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If you invert first: 1/(-3x)^2
If you then square: 1/(9x^2)
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Cheers,
Stan H.