helenluiza21 helenluiza21

07-12-2020
Mathematics

contestada

Could someone please help me out?

What is the number of real solutions? Use the dicriminant.

-11x^2 + 3x = -8

Respuesta :

oscar236 oscar236

07-12-2020

Answer:

2.

Step-by-step explanation:

-11x^2 + 3x = -8

-11x^2 + 3x + 8 =0

Discriminant = b^2 = 4ac

=3^2 - 4*-11*8

= 9 + 352

= 361

The discriminant is positive so there are 2 real roots.

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