Question

How do I simplify `(10*2^6)/(8*2^(-2))`?

Answer 1

I found: `320`

Explanation:

You can write it as:
`=10/8*2^6*2^2=` remembering that `1/a^2=a^-2`
then:
`=cancel(10)^5/cancel(8)^4*2^(6+2)=` remembering tha `a^b*a^c=a^(b+c)`
`=5/4*2^8=`
`=5/cancel(4)*cancel(256)^(64)=`
`=5*64=320`