Question

Use the discriminant to find the number and type of solutions this quadratic equation has.

-x2 + 2x – 2 = 0

Answer 1

the discriminant is b^2 - 4ac
take the numbers that replace a, b, and c in ax^2 + bx + c = 0
if the discriminant is...
negative, zero rational solutions
positive, but not perfect square, two irrational solutions
positive perfect square, two rational solutions
hope this helps