minorfamily2019 minorfamily2019

21-10-2021
Mathematics

contestada

please help fast ^^

Using the discriminant, determine the number of real solutions,

-2x^2+x-28= 0

Ono real solutions
O one real solution
O two real solutions

Respuesta :

lemonzest17 lemonzest17

21-10-2021

The discriminante :
b^2-4ac

1^2 - 4 * -2 * -28 = 1 - 224 = -223

When the discriminant (b^2-4ac) is less than 0, the equation had no real solutions.

-223<0, so, 2x^2+x-28 = 0 has no real solutions.

Hope that helps :)

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