Question

2^n-7*5^n-4 find the value of n

Answer 1

Answer:

2^n-7*5^n-4=1250

Step-by-step explanation:

2^n-7*5^n-4=1250

2^n-7*5^n-4= 5*5*5*5*2

2^n-7\2=5^3\5^n-4

n-7-1=3-n-4

n-8=-1-n

n+n=8-1

2n=7

n=7/2 ANS