Question

(2^x+1)(5^x)=200 find x​

Answer 1

(2^x+1)(5^x)=200

=>(2^x)5^x+1*5^x=200

=>10^x+5^x=200

=>15^x=200

=>15^x=15^1.96(appox)

=>x=1.96(appox)

I hope it will help you.