SOLUTION: Instructions: find the valueof the dicriminantand determine the number of real solutions for each equation. Question: 8y^2-2=0

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Question 32315This question is from textbook algebra 1
: Instructions: find the valueof the dicriminantand determine the number of real solutions for each equation.

Question: 8y^2-2=0 This question is from textbook algebra 1

Answer by mukhopadhyay(490) About Me  (Show Source):
You can put this solution on YOUR website!
Discriminant for ax^2+bx+c = 0 is b^2-4ac
For 8y^2 - 2 = 0, a=8, b=0, c=-2
b^2-4ac = 64 (Discriminant)
Roots are [-b + sqrt(discriminant)]/2a and [-b - sqrt(discriminant)]/2a
=> x=1/2 and x=-1/2