1.

If a+b+c=0 and ax^2+bx+c=0 has equal roots then both roots are equal to:(A) 0(B) 1(C) -1(D) none of these ​

Answer»

GIVEN that a+b+c = 0

and ax^2+bx+c=0 has equal roots

If we put x=1 we get a+b+c = 0 which is given.

So x=1 is a root.

SINCE both roots are equal, the roots are 1.


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