Question

If the roots of x? - bx+c=0 be two consecutive integers, then find the value of b² - 4c.
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Answer 1

Step-by-step explanation:

Given equation is x2−bx+c=0

Let the roots be α and α+1

Therefore, 2α+1=b

⇒α(α+1)=c

Hence, b2−4c

=(2α+1)2−4α(α+1)

=1

Answer 2

Answer:

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