Question

2x^2-5x-1=0 in this equation what is value of 1/α+1/β​

Answer 1

Answer:

-5/3

Step-by-step explanation:

first divide this equation by 2

so we get, x^2-(5/2)x-1=0

here im going to denote alpha as a & beta as b

so a+b=5/3 & ab=-1

so 1/a+1/b=(a+b)/(ab)

hence (5/3)/(-1)

hence the solution is -5/3