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13-11-2020
Mathematics

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What is the discriminant? What does it tell you about the types of solutions you can have?

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13-11-2020

Answer:

Step-by-step explanation:

ax² + bx + c = 0

Discriminant D = [ - b ± √(b² - 4ac) ] / 2a

If D > 0, then quadratic equation has 2 real roots ;

If D = 0, then quadratic equation has 1 real root ;

If D < 0, then quadratic equation has 0 real roots .

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