Thank you for registering.

One of our academic counsellors will contact you within 1 working day.

Please check your email for login details.
MY CART (5)

Use Coupon: CART20 and get 20% off on all online Study Material

ITEM
DETAILS
MRP
DISCOUNT
FINAL PRICE
Total Price: Rs.

There are no items in this cart.
Continue Shopping

The equation 2x 2 + 3x + 1 = 0 has an irrational root. True/False. Please help me on this

The equation 2x2 + 3x + 1 = 0 has an irrational root. True/False. Please help me on this

Grade:upto college level

1 Answers

Navjyot Kalra
askIITians Faculty 654 Points
7 years ago
2x2 + 3x + 1 = 0 ⇒ x = -1, -1/2 both are rational
∴ Statement is FALSE.
ALTERNATE SOLUTION :
If coefficients of a quadratic equation are rational and D is a perfect square, roots are rational.
As coefficients are rational and D = 9 – 8 = 1 is perfect square.
∴ Roots must be rational.
∴ Statement is FALSE.

Think You Can Provide A Better Answer ?

Provide a better Answer & Earn Cool Goodies See our forum point policy

ASK QUESTION

Get your questions answered by the expert for free