Question

Find x
If 2s power is x and it is divided by 2s power -2 and it is equal to 2s power 7

Answer 1

Answer:

2^x÷2^(-2)=2^x÷1/2^2

as it becomes reciprocal 2^x×2^2

2^(x+2)=2^7 ( a^m×a^n=a^(m+n) )

as bases are equal power is also equal.

x+2=7

x=5