3 years ago

Find the discriminant and the number of real roots for this equation 9x^2+12x+4=0

Mathematics

2 answers:

irina1246 [14]3 years ago

8 0

Answer:

0 one real root

Step-by-step explanation:

VARVARA [1.3K]3 years ago

5 0

Answer:

hello :

9x^2+12x+4=0

a = 9 b = 12 c = 4

the discriminant Δ = b² - 4ac = 12² - 4(9) (4 ) =144 - 144 = 0

x1 = x2 = - b/2a = -12/18 = - 2/3

the real root is : - 2/3

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