What are the roots of the equation

Question

2x^2-7x+4=0

Answer 1

You have to use the quadratic equation to solve this problem.

 

The general formula for the quadratic equation is x = {-b +- sqrt [ b² - 4(a)(c) ]} / (2a)

 

Applying this formula to this problem, we get: {-(-7) +- sqrt [ (-7)² - 4(2)(4) ]} / (2a)

 

From here, it's just arithmetic, and your final answer should be (7 +- sqrt(17)) / 4