Question

The quadratic equation whose one of the roots is 6+√11
(a) x^(2)-12x+25=0 (b)x^(2)-25x+12=0
(c) x^(2)-18x+15=0
(d) none


Pls answer asap​

Answer 1

Answer:

i)25x

2

−10x+1=0

b

2

−4ac=10

2

−4⋅25⋅1

=100−100

b

2

−4ac =0, Equal real roots

ii)2x

2

+8x+9=0

b

2

−4ac=8

2

−4⋅2⋅9

=64−72

b

2

−4ac=−8, imaginary roots.