Rmcelroy834 Rmcelroy834

21-12-2019
Mathematics

contestada

What is the discriminant of the polynomial below?
9х2 - 18х+9
ОА. -18
ОВ. 648
Ос. о
напна
о

Respuesta :

FrightfulMarty FrightfulMarty

21-12-2019

Answer:

discriminant=D=0

Step-by-step explanation:

given, 9x^2-18x+9=0...............(1)

equ (1) divided by 9

x^2-2x+1=0

discriminant=D=b^2-4ac

where, b=-2, a=1, c=1

D=(-2)^2-[tex]4\times 1\times 1[/tex]

D=4-4=0

D=0

hence discriminant=D=0 answer

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