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Question

State true or false. The discriminant for general quadratic equation ax2+bx+c=0 is b24ac.


A

True

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B

False

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Solution

The correct option is A

True


ax2+bx+c=0

Roots of equation = b±b24ac2a

= b2a+b24ac2a, b2a-b24ac2a

(b24ac) term discriminates between the 2 roots of the equation.

Discriminant = b24ac


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