Answer:
289
Step-by-step explanation:
1. if to re-write the given equation, then 13y²-9y-4=0;
2. if to calculate the required discriminant, then:
D=81+13*4*4=208+81=289.
Answer:
289
Step-by-step explanation:
[tex]13y^2-9y-4 = 0\\[/tex]
D = [tex]b^2-4ac[/tex]
Wherein,
b = 9
a = 13
c = -4
[tex]D = 9^2-(4*13*-4)\\= 289[/tex]
