Question

1. Express in exponential form.
13
256 X 81
64 x 729

2.If 22x-3 = (64)^x,find the value of x.​

Answer 1

Answer:

We have to express the following in exponential form,

256/64×81/729

Now if we look at the first fraction that is 256/64 we will see that 64 x 4 = 256

and the second fraction is 81/729 = 81 x 9 = 729

So after simplifying the above we get,

= 4/9

= (2)²/(3)²

hence 256/64×81/729 = (2)²/(3)²

Answer 2

256*81/64*729

= 4/9

= (2/3)²