Question

Which of the following equations has the sum of roots as 3 is​

Answer 1

Step-by-step explanation:

WE know that equation ax

2

+bx+c=0

Then sum of roots =

a

−b

(i) In equation 2x

2

+3x+6=0

the sum roots =

2

−3

this not as3

(ii)IN equation x

2

−3x+3=0

1

−3

=3 this is 3

(iii) In equation

2

x

2

+

2

3

x=10⇒

2

x

2

+

2

3

x−10=0

Sum of roots =

2

−

2

3

=−

2

3

is not 3

(iv) In equation 3x

2

+3x+3=0

Sum of roots =

3

−3

=−1 This is not 3

Then in equation x

2

−3x+3=0 is 3

Answer 2

Answer:

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