Question

If 2^x+5=4^x-1, then x =?​

Answer 1

Answer:

27 is the answer

Step-by-step explanation:

2

x

−2

x−1

=4

2

x

−2

x

2

−1

=4

2

x

(1−

2

1

)=2

x−1

=4=2

2

∴ x−1=2

from this we get x=3

x

x

=3

3

=27