Book Maths Puzzle Algebra

Hello, I'm finding the following question a little difficult:
Q. Find x
4^x + 2^(x+1) = 16

Thank you very much for your time and help,
Jenesse Ubhi

Read Solution (Total 0)

Book Other Question

Let p1 and p2 be two odd primes. Show that there is a prime q such that q is not in {p1,p2} and q divides the sum p1 + p2. Solve the problem with linear equations:
A mechanic has some 30% antifreeze solution and some 50% solition,How many liters of each should be used to get 50 liters of a 42% solutio