kayne2020
kayne2020 kayne2020
  • 13-11-2020
  • Mathematics
contestada

I need help and thanks in advance

I need help and thanks in advance class=

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Аноним Аноним
  • 13-11-2020

Step-by-step explanation:

b²-4ac

(10)²-4(-4)(-8)

=100+16+32

=148

Answer Link
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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