Find the discriminant and the number of real roots for this equation 9x^2+12x+4=0
2 answers:
Answer:
0 one real root
Step-by-step explanation:
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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