Flag Algebra> Quadratic Equation, want to get a concept...
question mark

We know that if the discriminant of a quadratic equation is greater than zero & it is a perfect square then roots are real, distinct & rational. I was solving a question in which the quadratic equation had rational coefficients & when I found its discriminant, it was a perfect square but still I found that its roots are irrational...is it possible as I know that quadratic equations irrational roots & rational coefficients...always occur in conjugate pairs....BUT the problem was that my D was prect square & still roots were irrational. This is the question 2x2- 2 root 3x + 1

Yash Maurya , 12 Years ago
Grade 12th Pass
anser 1 Answers
surendra singh niranjan

Last Activity: 12 Years ago

roots of 2x^2 +2  are 1 and -1 not -1/3 and when D is perfect square and rational cofficients are there than roots are always real and rational

Provide a better Answer & Earn Cool Goodies

star
LIVE ONLINE CLASSES

Prepraring for the competition made easy just by live online class.

tv

Full Live Access

material

Study Material

removal

Live Doubts Solving

assignment

Daily Class Assignments


Ask a Doubt

Get your questions answered by the expert for free