NevinRez69
NevinRez69
14-05-2022
Mathematics
contestada
NEED TO PASS HELP WILL GIVE BRAINLY!!!
Respuesta :
Hrishii
Hrishii
14-05-2022
Answer:
[tex]\bigodot[/tex] None of the other answers are correct.
Step-by-step explanation:
[tex]2b^2-3b+85=-5[/tex] (Given)
[tex]\implies 2b^2-3b+85+5=0[/tex]
[tex]\implies 2b^2-3b+90=0[/tex]
Comparing it with the general form of quadratic equation [tex]ax^2+bx+c=0,[/tex] we find:
a = 2, b = -3, c = 90
Next, we find the value of the discriminant [tex] b^2-4ac[/tex]
[tex] b^2-4ac= (-3)^2-4(2)(90)=9-720=-711<0[/tex]
[tex] \because b^2-4ac<0[/tex], which means the roots of the given quadratic equation are non-real or imaginary.
Thus, last option is the correct answer.
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