Question

How many real number solutoins does the equation have? -8x^2 + 8x - 2 = 0

One
Two
None
Infinitely many solutions

Answer 1

one

Explanation:

for general form : ax²+bx+c=0

delta = b²-4ac

so for this example delta is 8²-4×2×8 =0

we know if delta = 0 , we have just one real number solution

so the answer is 1