Question

how to convert rational number into exponential form 81/256​

Answer 1

Answer:

Step-by-step explanation:

The required exponential form is x=-(\frac{9}{16})^2x=−(

16

9 )2Step-by-step explanation:

1. Given : Expression -\frac{81}{256}−

256

81

To find : Express rational numbers in exponential form ?

Solution :

Let x=-\frac{81}{256}x=−

256

81

Exponential form is when the number written in the power.

We know, 81=9^281=9

2

and 256=16^2256=16

2Substitute the values,

x=-\frac{9^2}{16^2}x=−

16

29

2x=-(\frac{9}{16})^2x=−(

16

9 ) 2Therefore, The required exponential form is x=-(\frac{9}{16})^2x=−(

16

9 )2

Answer 2

3×3×3×3/4×4×4×4= 81/256