SOLUTION: The discriminant of the equation 8x^2-9x+5=0 is

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Question 567426: The discriminant of the equation 8x^2-9x+5=0 is
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
From 8x%5E2-9x%2B5 we can see that a=8, b=-9, and c=5


D=b%5E2-4ac Start with the discriminant formula.


D=%28-9%29%5E2-4%288%29%285%29 Plug in a=8, b=-9, and c=5


D=81-4%288%29%285%29 Square -9 to get 81


D=81-160 Multiply 4%288%29%285%29 to get %2832%29%285%29=160


D=-79 Subtract 160 from 81 to get -79


So the discriminant is D=-79


Since the discriminant is less than zero, this means that there are two complex solutions.


In other words, there are no real solutions.