Posted by **anonymous** on Sunday, August 22, 2010 at 1:04pm.

Simplify:

a) 8^2 = 64 ... correct?

b) 8^-2 = 1/8^2 ... correct?

c) (1/8)^2 = 1/64??

d) (1/8)^-2 = 1/64??

e) -8^2 = 64??

f) (-8)^2 64??

Please let me know if these are correct.

Thank you!

- Math -
**Joejoe**, Sunday, August 22, 2010 at 1:07pm
yes they are all correct, i tried them on my calculator.

- Math -
**anonymous**, Sunday, August 22, 2010 at 1:11pm
Thank you!!

- Math -
**Reiny**, Sunday, August 22, 2010 at 1:12pm
d) is not correct

(1/8)^-2

= (8/1)^+2

= 64

be careful with e) and f)

e) -8^2 = -64

it means -(8)(8)

f) (-8)^2 = +64

it means (-8)(-8)

- Math -
**Joejoe**, Sunday, August 22, 2010 at 1:14pm
i guess i made the same mistake she did?

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