kayne2020
kayne2020
13-11-2020
Mathematics
contestada
I need help and thanks in advance
Respuesta :
Аноним
Аноним
13-11-2020
Step-by-step explanation:
b²-4ac
(10)²-4(-4)(-8)
=100+16+32
=148
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keeley211991
keeley211991
13-11-2020
Discriminant is b^2 -4ac. So it’s (10)^2 - 4 (-4)(-8) = 100 + 128 = 228. When the discriminant is greater than 0 and not a perfect square you have 2 real irrational roots.
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