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!
4 answers
yes they are all correct, i tried them on my calculator.
Thank you!!
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)
(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)
i guess i made the same mistake she did?