Question

if a-2/a = 3 , find a^2- 8/a^3​

Answer 1

Answer:

The value of a  

2

 and 2  

a

 for a=3 is calculated as below,

a  

2

=3  

2

 

=3∗3

=9.

2  

a

=2  

3

 

=2∗2∗2

=8.

Hence, the values of a  

2

=9 and 2  

a

=8.

Answer 2

Answer:

Make me as a Brainlist pls

Step-by-step explanation:

$\frac{a - 2}{a} = 3 \\ = > a - 2 = 3a \\ = > 2a = - 2 \\ = > a = \frac{ - 2}{2} = - 1 \\ = > a = - 1$

Find :- a²-8/a³

$\frac{ {a}^{2} - 8}{ {a}^{3} } \\ = > \frac{ {( - 1)}^{2} - 8 }{( { - 1)}^{3} } \\ = > \frac{1 - 8}{ - 1} \\ = > \frac{ - 7}{ - 1} = 7 \\ = > 7$