How do I solve 2xsquared - 20x = 8

Question

Please explain how to solve this equation

Answer 1

First, divide both sides by 2 to get:

 

x²-10x=4; Or it can be written as x²-10x-4=0;

 

Use quadratic formula for even coefficient at the x term. You will get:

 

x_1,2=5±√(25+4)=5±√29

 

Answer:

 

x₁=5-√29

x₂=5+√29