Please explain how to solve this equation

First, divide both sides by 2 to get:

x

^{2}-10x=4; Or it can be written as x^{2}-10x-4=0;Use quadratic formula for even coefficient at the x term. You will get:

x

_{1,2}=5±√(25+4)=5±√29Answer:

x

_{1}=5-√29x

_{2}=5+√29