Question

What is the discriminant of 3x2 + 6x = 2?
12
18
42
60

Answer 1

The correct answer is option D i.e. 60 The given equation is : 3x^2 + 6x - 2 = 0 The discriminant is given as = {b^2 - 4ac}/2a; where a = 3, b = 6 and c = -2d Thus, D = {6^2 - 4(3)(-2)} or D = {36 + 24} or D = 60

Answer 2

The correct option is 4. The value of discriminant is 60.

Explanation:

The given equation is

`3x^2+6x=2`

It can be written as

`3x^2+6x-2=0`

If a quadratic equation is in the form of

`ax^2+bx+c=0`

then, it discriminant is

`D=b^2-4ac`

The value of discriminant for given equation is

`D=(6)^2-4(3)(-2)`

`D=36-(-24)`

`D=36+24`

`D=60`

Therefore correct option is 4. The value of discriminant is 60.