If f x ax2 bx c and g x ax2 bx c where ac sup1 0 then f x g x 0 has ........

If f(x) = ax² + bx +c and g(x) = - ax² + bx +c where ac ¹0 , then f(x) g(x) = 0 has

At least two real roots

Two real roots and two imaginary roots

At least three real roots

No real roots

At least two real roots

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