Question

which of the following quadratic equations do not have real ?
(a) x^2-4x+3√2=0
(b) x^2+4x-3√2=0
(c) x^2-4x-3√2=0
(d) 3x^2+4√3x+4=0​

Answer 1

Answer:

d) is the answer.........

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Answer 2

Answer:

(a) x²-4x+3√2=0 do not have real roots

Step-by-step explanation:

Because the discriminant

a=1,b=-4,c=3√2

D=b²-4ac

=(-4)²-(4*1*3√2)

=16-12√2

=16-16.8

=0.8

here D<0 so the roots are not real