Question

Without solving the following quadratic equation, find the value of 'm' for which there
equation has real and equal roots. r? + 2(m-1)x+(m +5)=0 An
​

Answer 1

Answer:

The given equation is x

2

+2(m−1)x+(m+5)=0

For the equation to have real and equal roots, the discriminant should be 0.

∴[2(m−1)]

2

−4(m+5)=0

⇒4(m

2

−2m+1)=4(m+5)

⇒m

2

−3m−4=0

⇒(m−4)(m+1)=0

∴m=4 or m=−1

Answer 2

Answer:

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