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Mathematics for IGCSE & O level - Equations (Section 7 - No. 23)

If you have a quadratic equation and factorize it and the two roots are the same, this means what?
The discriminant is positive
The discriminant is negative
The discriminant is zero
No roots at all

توضيح

If the quadratic equation has the same root twice then its discriminant will be equal to zero.

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