Posted by **jas20** on Tuesday, February 27, 2007 at 8:58pm.

I hope this is correct now....

Write using positive exponents, and simplify if possible

(-3x)^-2

a)(1)/(6x^2)

b)(9)/(x^2)

c)(1)/(9x^2)

d) - (9)/(x^2)

My answer: c

Evaluate 4^-5

My answer is: (1)/(1024)

Both look OK!

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