Question

Please solve step by step
http://awesomescreenshot.com/0472bvq209

Answer 1

\[4^{-3.5}=(2^2)^{-3.5}=2^{2\times(-3.5)}=2^{-7}=\frac{ 1 }{ 2^7 }=\frac{ 1 }{ 128 }\]

Answer 2

Thank you very much

Answer 3

You're welcome.

Answer 4

\(A^{-m}=1/A^{m}\) Okay

Answer 5

Is that the formula

Answer 6

Yup it's a formula, but it is not the one you need right now i guess

Answer 7

What's the one I need o.o

Answer 8

I thought you understand what @gunsodo just do ?

Answer 9

It makes sense what he did... yes. Lol nvm

Answer 10

The easiest way to solve problems like this, is to make the exponent be an integer.

Answer 11

Yup excellent :)

Answer 12

Thanks.

Answer 13

Does that involve squaring the whole number?

Answer 14

Nope, I don't think that you need the square here