Question

What is the value of  a, for which (−2)^ a + 3 × (−2) ^3 = (−2)^ 9?​

Answer 1

Answer:

Correct option is

B

6

2

n

×2

3

=2

9

⇒2

n

=

2

3

2

9

⇒2

n

=2

6

⇒log

2

(2

n

)=log

2

(2

6

)

⇒nlog

2

2=6log

2

2

⇒n=6