Question

If the roots of the quadratic equation ax2 +6x +3= 0 are equal then find the value of 2a
3
6
2
4​

Answer 1

Answer:

Answe is option 2.)6

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Answer 2

Given :   roots of the quadratic equation ax² +6x +3= 0 are equal

To Find : value of 2a

Solution:

roots of the quadratic equation ax² +6x +3= 0 are equal

=> D = 0

=> 6² - 4(a)(3) = 0

=> 36 - 12a = 0

=> 3 - a = 0

=> 3 = a

a = 3

=> 2a = 6

Value of 2a  = 6

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